Lev semenovich vygotsky, two types of psychological development

Lev Semenovich Vygotsky was a developmental Psychologist. He lived a short life during turbulent, radical times. Lev Vygotsky was born on the 17th November 1896 in Orsha, a metropolis in the Western part of the Russian Empire in a Judaic household. He died 37 old ages subsequently from TB in Stalinist, Russia. Vygotsky was a Lawyer based on his University instruction and a school instructor by business. Although his involvements were rather diverse his Hagiographas frequently centred on subjects of kid development and instruction. Some of the major theories developed by Lev Vygotsky include ; Socio-cultural Theory – Vygotsky proposed there were two types of psychological development ; â€Å" natural † consisting of biological growing, physical and cognitive development ; and â€Å" cultural † , dwelling of larning to utilize psychological and cultural tools, including marks, symbols and linguistic communication. Vygotsky believed that a kid ‘s development is a consequence of his/her civilization. He thought that development applied ab initio to the psychological procedure, for illustration, linguistic communication accomplishments, the manner of thought and other mental maps. Vygotsky believed the above is accomplishable through interacting socially with others, the parents being of peculiar influence to the kid along-side knowing others. Interaction with others enables a kid to larn the life style of his/her civilization. These wonts being things such as address forms, the written linguistic communication and other constructed cognition. Both n atural and cultural operation act jointly to simplify the development procedure. Vygotskys socio-cultural theory suggests that societal interaction leads to uninterrupted bit-by-bit alterations in a kid ‘s idea and behavior that can change greatly from civilization to civilization ( Woolfolk, 1998 ) . Basically, Vygotskys theory implies that development depends on a kid ‘s interaction with others and the tools that civilization provides to assist them organize their ain position of the universe. His theory combines the societal environment and knowledge. Children will get the ways of thought and behaving by interacting with a more knowing other. Vygotsky believed that every map in the kid ‘s cultural development appears twice, foremost on the societal degree and subsequently, on the single degree, foremost between people ( inter-psychological ) and so inside the kid ( intra-psychological ) Vygotsky, 1978. The socio-cultural theory consists of several elements to as sist implement it ( see below left ) . Language and the thoughts that are expressed by agencies of linguistic communication play a cardinal function in mental development.image Zone of Proximal development – Harmonizing to Vygotsky kids learn by following the beliefs, values, and attitudes of others, either consciously or unconsciously as a consequence of interacting with them. Vygotsky argues that the Zone of Proximal Development ( ZPD ) is the difference between a kid ‘s bing abilities and what s/he can larn under counsel from a knowing other. Therefore the Proximal Zone is the difference between what kids are already able to make and what they are non rather ready to carry through by themselves. Harmonizing to Vygotsky, a knowing other must assist direct and organize a kid ‘s acquisition before the kid can understand and follow it. In order for the ZPD to be a success, it must incorporate two characteristics, the first of which is called subjectiveness. This term implies that the knowing other must hold a common apprehension of what they are making with the kid, in-other-words both parties must hold a shared end. The kid uses the exper tness of the knowing other ( adept ) in the acquisition procedure. To get down the expert takes duty, so as the kid ( novice ) learns, the expert transportations rational duty to the novitiate. This is non immediate but a gradual procedure for illustration, when an expert teaches a kid how to swim, the expert first supports the kid in the H2O and so Lashkar-e-Taibas go bit by bit, there-by switching duty to the kid. The ZPD uses two degrees to find a kid ‘s ability and potency. A kid ‘s â€Å" existent development degree † is what s/he can accomplish unaided without aid. This sets the footing for a kid ‘s cognition and is what is traditionally assessed and valued in schools. The â€Å" possible development degree † is the degree of proficiency a kid can make when s/he is guided and supported by another individual. Social interaction helps a kid to retrieve and may even keep the cardinal to memory development. The construct of a important other steerin g a kid through the ZPD is known as guided engagement /scaffolding.Graph: Zone of proximal development: Vygotsky Guided Participation/Scaffolding – Harmonizing to Vygotsky staging is the procedure used by a knowing other to teach or steer a kid through hard jobs, in order to cultivate hypertext transfer protocol: //www.tascwheel.com/files/research/article-01/figure3.jpg her/his potency. Scaffolding makes it easy for a kid to construct on the cognition they already have and helps them follow new thoughts and attitudes. Any direction given by the knowing other must be directed towards the hereafter and non the yesteryear. Guidance can be given in legion different ways, by a knowing other, by cultural experiences or objects or by a kid ‘s old acquisition. Vygotsky assumed that a kid ‘s development is a consequence of his/her civilization. He thought that development applied chiefly to the psychological procedure, for illustration, usage of linguistic communication accomplishments, the logical thinking procedure and other mental maps. Vygotsky thought that the above is achieved through interacting with others, parents being peculiarly influential to the kid ‘s development along-side knowing others. Interaction with others enables a kid to larn the manner of life of his/her civilization, that is to state address forms, the written lingu istic communication and other constructed cognition. Vygotsky believed that societal interaction helps kids to retrieve and may even keep the cardinal to memory building. As illustrated in the image above, the scaffolding rule plants on the footing that the knowing other asks the kid unfastened ended, near ended inquiries and gives bit-by-bit instructions ever structuring the acquisition procedure. Encouragement and congratulations are offered at every chance, while each point is reinforced through presentation, repeat and the usage of psychological tools. This procedure helps the kid construct on their cognition. Psychological tools can be in the signifier of â€Å" symbolic objects † such as, marks, relevant texts, expression, graphs, important devices and today it besides includes electronic signifiers of information entree ( computers/internet ) .Internalization and LanguageAnother of import part made by Vygotsky connects the development of relationships between linguisti c communication and idea. This construct is farther explained in his book Thought and Language. It looks at the connexion between address ( soundless inner address and unwritten linguistic communication look ) and the development of mental perceptual experience and consciousness of one ‘s thought procedure. Vygotsky argues that it is through the above that a kid ‘s ideas and mental concepts are formed. Language development is formed in the undermentioned four phases ; Crude Stage – At this phase a kid has n't mastered the art of address s/he merely babblings. The sounds that s/he makes do n't hold any existent significance or intent. The kid is merely experimenting with their new found accomplishment. This action does non intend that a kid does non believe it merely suggests that s/he has non learned to internalize her/his address. Naive Stage – When a kid foremost learns to talk s/he may state certain words before s/he has a comprehensive apprehension of their significance and map. A kid merely understands that when a word is said in a certain manner others understand the significance. In other words understanding of a word comes before the kid really learns the full significance and intent of that word and is able to set it in any peculiar order. External Stage – In this phase the kid begins to utilize peripheral objects such as, flash cards, or fingers for numbering. This is besides the beginning of the egoistic address. The kid will speak to herself during drama with others or when there is no 1 else about. This action is the kid ‘s verbalization of ideas. In-growth Stage – In this phase the kid ‘s egoistic address turns inwards. S/he enters the concluding phase of linguistic communication development and with these new found abilities the kid is able to execute logical undertakings internally. Rather than numbering aloud s/he will number in her/his caput utilizing portion of her/his short term memory. Vygotsky believed that the more a kid uses internalised idea and logic, the better a kid can execute.Major Contributions to EducationVygotsky has made many of import parts to the instruction system and instruction, he has become to some extent a powerful figure in instruction, school psychological science and particular instruction, respected all over the universe. Many instructors and parents even before Vygotskys clip noticed an obvious connexion between support from a knowing other and the advancement a kid is able to do utilizing that support. Vygotskys ZPD helped determine options to standardized testing in schools. Vyg otsky founded what is known as â€Å" dynamic appraisal † . Dynamic assessment accent potency instead than present accomplishment and measures the acquisition procedure straight. Traditional trials merely measure the kid ‘s current abilities based on past acquisition and non the kid ‘s possible. Harmonizing to Vygotsky dynamic appraisal leads a kid to accomplish success through joint shared activity ( Lidz, 1995 ) . The ZPD has direct bearing on readying in school instruction, it enables a instructor to take methods bespoke for peculiar pupils. Vygotsky believed that the schoolroom is a society consisting of a community of scholars with assorted ability, expert/novice working together. He viewed the instructor as an teacher, steering and interacting with pupils. Through the procedure of scaffolding the instructor is able to supply support to the pupils. Through the effectual usage of linguistic communication in the staging procedure the instructor is able to negoc iate with the kid. Vygotskys theory encourages coaction in the schoolroom. The instructor has to supply sufficient support until the pupil is able to travel through all set undertakings independently.Vygotskys 4 Principles Applied in ClassroomsHypertext transfer protocol: //viking.coe.uh.edu/~ichen/ebooklet/et-it/4vygo.htm Learning and development is a societal collaborative activity – This suggests that interaction between grownups and other kids is critical. The usage of engineering to heighten communicating, contact and interaction would be good in the schoolroom. Programmes that support combined job resolution and synergistic determination doing enrich the acquisition environment. The ZPD can function as a usher for curricular and lesson be aftering – Appropriate support by the instructor can help the acquisition procedure. Thoughtful counsel and productive treatment with the debut of psychological tools such as, encyclopaedias on CD-ROM, package such as, grammar draughtss and encephalon storming package would all assist the kid develop understanding and cognition. School acquisition should happen in a meaningful context – We learn things in relation to what else we already know and believe. Learning is an active societal procedure. It is non possible to absorb new cognition without some kind of old cognition to construct upon. The more we know the more we learn. Therefore a instructor must link what is to be learned with the pupil ‘s old cognition. Relate out-of-school experience to the kid ‘s school experience – The linguistic communication we use influences larning. It is of import for a instructor to organize school larning around the civilization the kid knows and understands for illustration, a category of pupils analyzing history could utilize a multimedia presentation to bring forth a undertaking about the history of their town. Vygotsky has made valuable parts in determining learning methods within particular instruction. He insisted that instructors should make a acquisition environment which would provide handicapped pupils with alternate agencies of communicating and development and those psychological tools should be used by instructors that are most suitable to counterbalance for a pupil ‘s peculiar disablement. He argued that a kid ‘s societal eviction is the chief factor responsible for its flawed development. Vygotsky states that although sightlessness may be a biological defect, a instructor must non cover with the biological factor entirely but besides look at the societal effects faced by the kid as a consequence of its sightlessness. He promoted the thought that handicapped kids should be included in the social/cultural life of their communities as this would rush effectual rehabilitation.Some Restrictions to Vygotskys TheoryVygotsky stresses the importance of civilization and lingui stic communication in understanding. However there is limited research that determines whether grownup, kid and equal coactions differ in their value ( Miller 2002 ) . There is besides the inquiry on how much aid the knowing other should give the kid and whether excessively much coaction could take to regression instead than assist a pupil evolve ( Miller 2002 ) . Vygotskys theory is frequently compared to Jean Piaget, who believed that cognitive competency should non be looked at until a kid reached the appropriate development phase. Piaget believed that the most of import beginning of cogitation is the kid itself. It is frequently said that Vygotsky was in front of his times. His theory was formed over 50 old ages ago and his had such a profound consequence on our instruction system. Even today, instruction psychologists are still researching his theory, which could go an of import instrument to alter, regenerate our present instruction system.

Retrenchment Strategies Type Essay

A retrenchment grand strategy is followed when an organization aims at a contraction of its activities through substantial reduction or the elimination of the scope of one or more of its businesses in terms of their respective customer groups, customer functions, or alternative technologies either singly or jointly in order to improve its overall performance. E.g: A corporate hospital decides to focus only on special treatment and realize higher revenues by reducing its commitment to general case which is less profitable. The growth of industries and markets are threatened by various external and internal developments (External developments – government policies, demand saturation, emergence of substitute products, or changing customer needs. Internal Developments – poor management, wrong strategies, poor quality of functional management and so on.) In these situations the industries and markets and consequently the companies face the danger of decline and will go for adopting retrenchment strategies. E.g: fountain pens, manual type writers, tele printers, steam engines, jute and jute products, slide rules, calculators and wooden toys are some products that have either disappeared or face decline. There are three types of retrenchment strategies – Turnaround Strategies, Divestment Strategies and Liquidation strategies. 1. Turnaround Strategies Turn around strategies derives their name from the action involved that is reversing a negative trend. There are certain conditions or indicators which point out that a turnaround is needed for an organization to survive. They are: Persistent Negative cash flows Negative Profits Declining market share Deterioration in Physical facilities Over manning, high turnover of employees, and low morale Uncompetitive products or services Mis management An organization which faces one or more of these issues is referred to as a ‘sick’ company. There are three ways in which turnarounds can be managed The existing chief executive and management team handles the entire turnaround strategy with the advisory support of a external consultant. In another case the existing team withdraws temporarily and an executive consultant or turnaround specialist is employed to do the job. The last method involves the replacement of the existing team specially the chief executive, or merging the sick organization with a healthy one. Before a turn around can be formulated for an Indian company, it has to be first declared as a sick company. The declaration is done on the basis of the Sick Industrial Companies Act (SICA), 1985, which provides for a quasi judicial body called the Board of Industrial and Financial Reconstruction (BIFR) which acts as the corporate doctor whenever companies fall sick. 2. Divestment Strategies A divestment strategy involves the sale or liquidation of a portion of business, or a major division. Profit centre or SBU. Divestment is usually a part of rehabilitation or restructuring plan and is adopted when a turnaround has been attempted but has proved to be unsuccessful. Harvesting strategies a variant of the divestment strategies, involve a process of gradually letting a company business wither away in a carefully controlled manner Reasons for Divestment The business that has been acquired proves to be a mismatch and cannot be integrated within the company. Similarly a project that proves to be in viable in the long term is divested Persistent negative cash flows from a particular business create financial problems for the whole company, creating a need for the divestment of that business. Severity of competition and the inability of a firm to cope with it may cause it to divest. Technological up gradation is required if the business is to survive but where it is not possible for the firm to invest in it. A preferable option would be to divest Divestment may be done because by selling off a part of a business the company may be in a position to survive A better alternative may be available for investment, causing a firm to divest a part of its unprofitable business. Divestment by one firm may be a part of merger plan executed with another firm, where mutual exchange of unprofitable divisions may take place. Lastly a firm may divest in order to attract the provisions of the MRTP Act or owing to oversize and the resultant inability to manage a large business. E.g: TATA group is a highly diversified entity with a range of businesses under its fold. They identified their non – core businesses for divestment. TOMCO was divested and sold to Hindustan Levers as soaps and a detergent was not considered a core business for the Tatas. Similarly, the pharmaceuticals companies of the Tatas- Merind and Tata pharma – were divested to Wockhardt. The cosmetics company Lakme was divested and sold to Hindustan Levers, as besides being a non core business, it was found to be a non- competitive and would have required substantial investment to be sustained. 3. Liquidation Strategies A retrenchment strategy which is considered the most extreme and unattractive is the liquidation strategy, which involves closing down a firm and selling its assets. It is considered as the last resort because it leads to serious consequences such as loss of employment for workers and other employees, termination of opportunities where a firm could pursue any future activities and the stigma of failure The psychological implications The prospects of liquidation create a bad impact on the company’s reputation. For many executives who are closely associated firms, liquidation may be a traumatic experience. Legal aspects of liquidation: Under the Companies Act 1956, liquidation is termed as winding up. The Act defines winding up of a company as the process whereby its life is ended and its property administered for the benefit of its creditors and members. The Act provides for a liquidator who takes control of the company, collect its assets, pay it debts, and finally distributes any surplus among the members according to their rights.

I'm not sure Essay Example | Topics and Well Written Essays - 750 words

I'm not sure - Essay Example Xunzi departs from the ideas of Confucius and Mencius in the view of heaven (Ivanhoe and Bryan 41). He argues that heaven is nothing more than the natural world which has no moral will and that its activities are totally different to human activities. Therefore, human-beings are responsible for their own destinies and they must not think that heaven can intervene or be in control of their own troubles. He says that heaven is responsible for how things are and not how they ought to be. People must therefore live with the effects and limitations imposed on them by heaven and earth (Ivanhoe and Bryan 39). On ritual, Xunzi perceives it as a way of bringing into existence a fully human world from people’s emotions. Rituals more often satisfy certain psychological needs and desires without considering on those of others. Sacrificial rites express the feelings of remembrance and longing for the dead. They perfect loyalty, good faith and the flourishing of ritual department and refine d demeanor. Xunzi`s theory dearly anticipates Sigmund Frend whereby the sages had a psychological purpose in creating the rituals and did not depend upon belief in the existence of ancestral spirits or their ability to respond to sacrifice (Ivanhoe and Bryan 51). Xunzi also argues that human nature is evil and that its goodness is the result of conscious activity. It is human nature that one is born with the desire for something either good or bad. As a result, indulging human emotions with human nature will lead to strife causing chaos and violence. Xunzi therefore indicates that before one attains modesty, he or she must emulate the example of a teacher and guided by the way of ritual and rightness. On the other hand Mencius argues that the nature of human beings is good after an understanding of human nature and distinction between the nature and conscious activity. He further argues that nature cannot be acquired by effort or learn it but instead given by heaven. They both recog nize that human beings have both bad emotions and good ones as well (Ivanhoe and Bryan 89). For Mencius, it is a matter of nourishment while Xunzi its transformation. As a result, education becomes more important for Xunzi than for Mencius since Xunzi view it as the only counterforce to the natural tendencies that result to competition, strife and aggression in the society. 2. Compare and contrast Mozi's, Mencius's and Xunzi's views of Heaven. Xunzi refutes the norm of the role of heaven by stating that heaven does not care about human affairs. According to him, heaven is nothing more than the natural world which has no will and correlation to human activities. He further argues that those who pray for rain are wasting their time. He points out that human beings are in charge of their own destinies and they must not wait for heaven to intervene on their troubles (Ivanhoe and Bryan 31). He concurs with Confucius that natural events like droughts affect human beings, they have no huma n meaning. Therefore people must live with the challenges imposed on them by heaven and earth. Xunzi also contrast with Mozi`s and Mencius view on non-action or non-striving action. He claims that good things are only achieved through effort. He attacks Laozi and Zhuangzi on the matter that human beings adopt the perspective of heaven and leave conventional values as result of yielding the natural flow of things. Xunzi instead gives the distinctive importance of the human nature and

CRJS472IP5 Research Paper Example | Topics and Well Written Essays - 750 words

CRJS472IP5 - Research Paper Example l in the world containing information about more than 70 million criminals along with over 34 million civil prints (The Federal Bureau of Investigation, 2010). This paper discusses the reasons as why the integrated automated fingerprint information system works so well and the measures that are necessary to ensure the effectiveness of new and emerging biometric databases. The Integrated automated fingerprint information system features the fundamental practices for fingerprint biometrics including maximizing the quality of a fingerprint scan, ensuring liveness detection to prevent circumvention, measuring system performance and conducting scenario testing. The quality of the fingerprint scan is a vital aspect of the fingerprint biometric system design and is determined by the scanner resolution, scanner measurement area, scanner measurement technology, and the human and environmental factors. High quality fingerprint scans yield large numbers of biometric features. Fingerprint copies may be used in attempts to bypass the biometric system. The Federal bureau of Investigation prevents security bypasses by maintaining liveness detection in the integrated automated fingerprint information system. Liveness detection also referred to as copy protection ensures that copies of authorized user fingerprints are not used in the biometric system. Fingerprint copies include activated latent prints, two-dimensional and three-dimensional copies. The automated fingerprint information system features scanners with a built-in ability to detect latent, two-dimensional and three-dimensional copies. The Integrated automated fingerprint information system architecture complies with the Federal Bureau of Investigation architecture. And also regular reviews are conducted to ensure it complies with standards and guidance. The regular reviews ensure that the integrated automated fingerprint information system works with exceptional performance. The system also features service-oriented

Women, Work and Class Assignment Example | Topics and Well Written Essays - 2250 words

Women, Work and Class - Assignment Example However, masculinity represents power not only of any men but white men that too those who leadership positions in the society. Hegemonic masculinity represents power that is attributed to men in high positions and such power is taken for granted whenever any man holds a certain position in the society. Hegemonic masculinity â€Å"legitimates the power of those who embody it† (Acker, 2006, p.82). In essential, hegemonic masculinity can be associated with violent acts like using violence for colonial conquests. In modern capitalism, violence is often masked by objective conditions like top managers in any organization can fire employees to increase profits thus creating unemployment (Acker, 2006, p.83). Hegemonic masculinity represents a country’s culture and heritage and this can be different in each country. Acker (2006) has given the example of Swedish banks trained and ambitious men in high positions give more priority to making profits than satisfying the needs of t he customers (Acker, 2006, p.84). Hegemonic masculinity is the power bestowed on men in position, and in the real sense it gives men in authority to use their power to bring positive changes in the society. Political leaders of a country can use the power bestowed on them to promote goodwill and harmony with other countries. 2. Means of provisioning In economic perspective, class differentiation is based on access of means of provisioning and survival. In a capitalistic society, production process and finances are executed with the objective of maximizing profit. Therefore, although some classes are provided with maximum resources, there are other classes whose production and resource accumulation capacities are undermined. Education and community play an important role in access to provisions, because these factors contribute towards â€Å"finding paid job at living wages† (Acker, 2006, p.55). Those who have control over production jobs receive highest returns in the field o f distribution. An economic structure of a nation is formed on the basis of distribution of provisions i.e. necessary supplies like food and clothing needed for survival. Provisioning occurs through paid or unpaid method of production, and distribution of results of production like wages and profits. Provisioning also affects gender and race. Many employees hire male workers in skilled trades or specific racial people for menial jobs for lower wages (Acker, 2006, p.170). However, with increase of service sector jobs, women labour is increasing thus making women breadwinners for families (Acker, 2006, p.172). Acker (2006) has given the example of housewife who does unpaid work of maintaining family. She has little control over means of provisions since she is dependent for provisions on others who are engaged in production and distribution processes (Acker, 2006, p.63). Today, education has become universal and also with increased job opportunities for all gender and races, power ove r means of provisioning is no more restricted to specific gender or race. Therefore, by contribution towards provisioning it is possible for any individual to become a significant shaper of a nation’s economy. 3. Corporate nonresponsibility Corporate nonresponsibility emphasizes the role of household women in the field of care and survival. This concept actually moves the responsibility of those with power and wealth and shifts it to women from poor and minority communities. It devalues their position but they are bound by responsibilities to take care of their lives and lives of others (Acker, 2006, p.9) Nonresponsibility can be turned to globalization processes. The scopes for profit and production without challenges to nonresponsibility act as encouraging factors for shifting production from

Trademark Dilution Coursework Example | Topics and Well Written Essays - 1000 words

Trademark Dilution - Coursework Example Another important aspect of trademark dilution is whether or not in reality, trademarks prevent such uncouth behavior as the industry is trying to prevent. Of course it is one thing to cry foul about trademarks and quite another to establish their effectiveness. The reason why this is the case is primarily because creative departments in companies develop novel means to reciprocate the efforts and products of other companies. Finally there shall be a detailed analysis of the economic impact of dilution. Trademark dilution is the United States for instance is a fairly recent phenomenon bearing in mind that the necessary legislation was passed in 1995. That was the year that the Federal Trademark Dilution act was passed. It sought to protect large companies against the ‘gradual whittling away’ of renowned brands by new entrants1. This was an effort to protect big business at the expense of upcoming businesses. This, as the more fashion conscious will note, is a famous brand. The aggressors were a couple; the Moseley’s who had committed the unforgivable act of opening a clothing store in Kentucky called ‘Victor’s Secret’. The more renowned company warned them off such a store name but only succeeded in making them change it to ‘Victor’s Little Secret’. This still fell short of the demands of the renowned retailer who thought a complete change of name was the only way out2. As happens in all cases of this kind, the matter ended up in court. In the Sixth Circuit it was agreed that there was possible dilution in this case. There were the usual exchanges associated with lawyers in such cases where the law is not very clear, with each side giving its own interpretation that was friendly to its client. The Moseley’s lawyer insisted that the fashion giant must table actual ‘economic harm’. Therefore, the whole business of trademarks is the prevention of any likely

Mentoring, Americans with Disabilities Act, Flex-time, Workplace Assignment

Mentoring, Americans with Disabilities Act, Flex-time, Workplace Security, and Performance appraisal - Assignment Example The four phases are (Boreen et.al, 2000): A mentoring relationship is based on numerous factors that relate to the success of the process as preferred by both the mentor and mentee. The basic relationship requirements include (Boreen et.al, 2000): The process of mentoring provides significant influence in career development. In women and minority groups mentoring is regarded as a mandatory requirement. Women and minority are viewed as a weaker part of the human race. For this reason, they are exposed to limited career opportunities and resources. Through mentoring this gap is lessened as they are provided an opportunity to learn basic career requirements from experts. This also improves their succeeding probability. The ADA was created to respond to the plight of the disabled or otherwise challenged persons. The Act was signed in 2009 by President Bush. Main components in the Act focused on making work places comfortable for the disabled or other wise challenged persons. Additionally, public places and entities were also required to be observant of the Act (Schall, 1998). In the act the beneficiaries are described as people with physical disabilities. The act excluded the inclusion of people affected by drug or substance abuse and visually impaired people whose sight can be corrected by the use of an optical lens. The ADA has positively impacted the working environment as companies have become more sensitive in making working places comfortable to the disabled persons. To ensure compliance of the ADA, an employer should put in place systems and mechanisms that address the issues raised by the ADA. For instance, an organization should advice other employees against discriminating against disabled persons (Schall, 1998). Traditional work schedules were heavily demanding on employees as they had to work during many hours and the output displayed could not match the time taken to complete tasks. Working on full time or eight hour day daily on the

Personal and Professional Practice Essay Example | Topics and Well Written Essays - 1000 words

Personal and Professional Practice - Essay Example People plagiarize because it looks like the easiest and quick thing to do when writing a project or even assignments. Author Ian Fleming wrote a novel with two of his colleagues, but he never mentioned them as co writers, he got sued by his colleagues and fined for plagiarism (Wainwright 2008, p.18). This amounted to plagiarism as he did not involve his counterparts in the final edition of the book yet they participated in its writing. Copying someone else’s work without their permission is plagiarism. A number of famous authors have become dodged with a number of controversies dealing with their books. Authors like Dan Brown and Lynda l Plante are just but examples of leading authors, who have battled court cases related to plagiarism (Arnold 2008). In order to avoid plagiarism in any of the work, one should be able to reference correctly all the ideas, materials, and theories that have been applied (Braniac 2012, p.6). Any individual reading your work should have the ability of telling exactly where the information is from. Read your work over and over again to  ensure that there is no plagiarism before handing in your assignment (Cottrell 2008, p. 41). . One should be able to reference directly, for example and also indirectly (Arnold 2008). One should be able to posses the knowledge of putting his or her own ideas in their assessment. In order to avoid plagiarism, one should use quotation marks, indirect referencing or at the same time, placing different ideas into your own personal words and including a reference at the end of each sentence (Cottrell 2008, p. 54). Referencing your work effectively and properly will prevent plagiarism from happening (Braniac 2012, p.6). Another way of avoiding plagiarism is by educating the students of the issue. Teachers should not assume that the students know what plagiarism is, even if they pretend to know what it is. The students should be provided with an explicit definition of plagiarism (Arnold 2008). Even when revising or paraphrasing another person’s words, or even just using their ideas, the author must still be given credit in a note (Wolff 2012, p.3). Ignoring crediting the appropriate authors, amount to lying. Students should include an annotated bibliography in their works. This should include a brief summary of the source, its location and also an evaluation about the importance of the source (Braniac 2012, p.6). Writers should be aware of the sources of the papers. Plagiarism detector should be used to check the levels of plagiarism (Wolff 2012, p.1). These detectors will enable the students prevent issues of plagiarism in their work or reports (Cottrell 2008, p. 28). Plagiarism is an offence; anyone doing it will be heavily punished. Bibliography Arnold, B, 2008, Caslon Analytics plagiarism incidents, Retrieved August 13, 2012, from http://www.caslon.com.au/plagiarismcasesnote.htm Braniac, A, 2012, How to Prevent Plagiarism, eHow, 6. Cottrell, S, 2008, The Study Skill s Handbook, New York: Palgrave Macmillan. Wainwright, M, 2008, Persaud suspended from practice for three months over plagiarism, The Guardian, 18. Wolff, J, 2012, Does plagiarism matter? Answer in your own words, The Guardian, 2-4. Personal and Professional Practice Name: Institution: Why is plagiarism viewed to be such a grave offence? Plagiarism is duplicating someone’s work claiming to be yours. People who commit plagiarism steal other

Using a Large Number of Ratios to Perform a Complete Ratio Analysis of Essay

Using a Large Number of Ratios to Perform a Complete Ratio Analysis of a Firm - Essay Example It is of great significance that the ratios must be benchmarked against a standard in order for them to possess a meaning. Keeping that into account, the comparison is usually conducted between companies portraying same business and financial risks, between industries and between different time periods of the same company. Profitability Ratios Gross profit margin is an analyzing tool which assists in identifying how effectively and efficiently the company is utilizing its raw materials [1], variable cost related to labor and fixed costs such as rent and depreciation of property plant and equipment. The ratio is calculated by dividing the sales revenue by the gross profit. Net profit margin, on the other hand analyzes the profitability of the company before deducting the taxation and finance charges from the earnings. The ratio is calculated by dividing the profit before interest and tax with the sales revenue of the current financial period. The ratio highlights how well the company is managing its selling and administrative expenses it also highlights the other income generated by the company during the course of its operations. Return on capital employed (ROCE) is, according to the analyst, is considered to be the most significant ratio. in order to evaluate a company’s performance from an investor’s point of view. ROCE measures a company’s ability to earn a return on all of the capital that is being employed by the company [3]. The ratio is calculated as net income upon total capital employed, which is the sum of debt and equity financings. Earnings per share (EPS) are considered one of the most important financial ratios from the investor’s point of view. The ratio highlights the average earnings from the shares transacted and is calculated by dividing the profit attributable to the common share holders and multiplying them with the weighted average number of shares outstanding during the period. The liquidity ratio measures the company’s ability to pay its short term liabilities. The ratio illustrates that how quickly a company can convert its assets into cash and cash equivalent in order to pay off its short term liabilities [3]. The most commonly used liquidity ratio, the current ratio, which is calculated by comparing the current assets and current liabilities. The strengthened the current ratio the more ability the company has to pay its debts and short term obligations over the next 12 months. An overall analysis of the ratio would portray that in all the years the company had enough assets to pay off its obligations and debts. The acid test, which is also regarded as the quick ratio, is calculated by subtracting the inventory balance from the total current assert balance. . Out of the current assets mentioned, inventories are regarded as the one which takes comparatively more time to be converted into cash or cash equivalent. Receivable turnover represents how quickly the cash is received from the debtors. The ratio is calculated by dividing the revenue generated from the sales by the receivable balance as mentioned in the balance sheet of t he company. The formula calculates the number of times the debtors are turned over during a year. The higher the value the more efficient the management is or it could also mean that the debts are more liquid. Inventory turnover represents how quickly a company’s inventory is sold, which can be calculated by div

The Key Concepts of Diversity Essay Example for Free

The Key Concepts of Diversity Essay 1. What are some of the ways groups of people are identified? I would say that there are four types of minority or subordinate groups. The classifying of the four criteria in minority groups are the race, ethnicity, religion, and the gender. Then the groups are racial groups, ethnic groups, religious groups, gender and other groups. The last you have is the subordinate groups that could be any groups they want. The racial group is a group that is a socially set apart because of the obvious physical differences in each other. The ethnic group is a group that can or set apart from others because of its national origin or cultural patterns that can be distinctive. The religion groups is just apart what it can say in its group made up with people that are in the same religion. Gender groups are made up of the male or all female. Now you have the subordinate group that can have a whole different set of criteria such as age, disability status, physical appearance, and the sexual orientation. Then I would say that you have groups that are made up of two or more groups put together, such as religion and color, or another combination that might be gender or sexual orientation, and it could be race. It can or it is usually the people that meet more than one of the groups into this that have the way of hardest times of dealing with things in the country or something that comes to mind. I would say that in this country that people are always placing people in groups that is hard enough to be just one group but when you add other groups into it there are even bigger problems or issues. Then to be a female in this country in these days it can be very hard but if you are one then you can add the race into it. The last part is religion to it and the people are more likely to feel something totally different about you. When we said this is all done we the people put too much importance on what groups that we belong to. None of this should even matter at all and we should all be put into one group or that is the human race and that can be all. 2. Why do people label and group other people? I do believe and think that people put labels on the people because they are down deep what they want to feel the superior to all others. The best part in some subconscious ways we put people in these groups and place labels on them to help other boost their egos and make them feel better about themselves. The labeling and the grouping people for hundreds of years and this is not a new thing by any means at all. This has been all the way for people to keep other down were they thought they belonged to. By this way in which people try and make themselves feel better about themselves for the simple fact that can do so many to the people that would have low self-esteem, and it is the way of boosting their own confidence. It is said realty of the way of life that if the people are the type to place people in groups they will not have anything to do with anyone else but for those that are in the same groups as they are in. I would say that a lot of people only have friends from people in which are inside their own group of people. But I do also think if we stop grouping people and putting labels on them we would have such better world. Look at all the problems down through our history that all that happened because of the labeling people. I might have an example of this such as Hitler he place people in groups and also label them and put them into separate camps. Then he thought unless you were a blonde hair and blue eyed you were not good enough to live in his world. Plus he thought the only way to deal with any problems that this could cause so he had an ethnic cleansing by killing those people and we all know how it turn out in that time and day. But he was is far from the only one that has done that. During that same time when the World War 2 was going own and look at what happened in our very own country we placed Japanese American’s in camps for the fact they were Japanese And still to this day and time we separate people into so many groups and keep thinking that are we all not just part of the human race or do we try to something else all the time.

The Mis Education Of The Negro Religion Essay

The Mis Education Of The Negro Religion Essay As negroes, we are taught by going to school certain things to look and read at. In art, we are told that European and Greek art are the greatest things to look at pertaining to the arts. In music, we look at classical from great white composers instead of African American ones. We would pick up literature against the African American instead of one thats for the African American. Well Im sad to inform you but this is true. Mr. Woodson saw this when he wrote his book and still today, it is still in effect. We choose to stay mis-educated due to the fact that we as a people do not choose to excel in embracing our minds. At Texas Southern University, we can say that we have a class in African American studies taught by an African American who has been around, traveled, and knows what he or she has been taught through experience. How would you feel that in other universities around the country have that same course but yet taught by a different race? I am not a racist but its time for our race to be not informed but become informed of our past, present, and future. Its funny though. Did you know that most of our political day to day people we see and hear on the news are the most mis-educated people? For instance, Tyler Perry would dress as the most famous cross dressed woman everyone would know, Madea. Is it so that the fact that during the slavery times, the Mamie, was the symbol for keeping the family together? It does but it has a darker meaning. I just had a recent conversation with my sociology teacher but he recently told me that white men love black woman. I knew that already but some white men didnt like the fact white men and black woman were all together. The Mamie was also formed as an unattractive black woman with a big butt and big lips thats always loud. Its tragic the way that other cultures view our women but this Is what is perceived. There are others that does this but this is the most commonly known person to do this but chooses to stay out the publics eye. The one issue with being seen and being mis-educated is the fact that you are educated and youre not doing anything about it. To the publics eye, if you are not in your community involved or have special programs, you are considered a bad role model. In this case you would want your people to succeed and in special made programs. But if your do get the programs right, there is a chance that there will not be any individuality within that person because you would want that person to conform unto society ways. Im not saying the phrase selling out, but your conforming unto your white counterparts takes away what that you have started with that of what you started to think. Its difficult but we need to encourage our black counterparts to be all what we can be. We missed an important mark growing up as being mis-educated. After the Civil war, it was upon the society to show us where our education was supposed to lead us. Systems had to be in place for our education to the white man, it was not viewed as their responsibility. During this time, W.E.B. Dubois had an argument that was saying with this education that we have, we should use it to show philanthropy. We should take the opportunity to learn how be political and be educated like how he was himself. With being so educated as like he was, there should not really be no labor of what he was arguing. Booker T. Washing had a different point of view. Booker T. Washington believed you should go to school and learn trades for a special talent. He doesnt believe in getting all political, he believes in getting an education but yet work hard to achieve the things you want by learning a specific talent. By Mr. Washington being a previous slave, you can see how he stand on this view. Carter G. Woodson stood between both points of views. He believed that because you are just coming from slavery, and the fact you would want to be educated, you should possess both traits. Its obvious that in the new society you would not be accepted because of fear and anger from your white counterparts. Have the knowledge how to work in a special talent to make money and a living and go out and become educated with politics. How can we as a people drift away from our truth? There is one simple way of answering that question, distortion. I was taught in my Fine Arts and Daily Living Class that you should never touch art due to its richness in color and texture. If you do touch it, you ruin hard work that was placed there by the painter. Well in life, if you want to ruin our distort life, then take its history and change it. Should it be a grave unjust that the Negro was reminded of how their inferiority was that they are the true germ carriers? The emergence of syphilis and tuberculosis among African Americans are always emphasized among most diseases. Today, our most commonly known disease in the African American community is HIV. The weird thing is that there is very emphasis on the fact that we are immune to diseases like yellow fever, and influenza which are horrible to whites. History is a delicate subject for most people that study in it. Where does the African American have a place in history? When we think of Africa, we think of the Dark continent with despair instead of the rich culture or minerals such as diamonds and gold. We dont think about the great pyramids of Egypt that is one of the 7 wonders of the world. We would rather think about the exploitations of Caucasians. Apparently at this time, the negro had no place in this curriculum. With teaching of fine arts, instructors usually start with Greece of how the world was influenced with their way. Its kind of ironic that most of all art work from the world came from the Africans. We failed to teach about the Mediterranean melting pot with the Africans bring their, wares, ideas, and blood to influence the history. Their art has influence the history of Greece, Carthage, and Rome. Maybe we choose to ignore the truth of these theories but either way, it happened. In educating the Negro what would happen to the white? For education, what was being thought of about those of outside control for our education. We were to give certain white people glory for the way they came down and gave us education. It is so that they helped established schools, and churches, in which we should be building more wisely then we do. We should believe in the theory that the only way to elevate people is to help them to help themselves. Although there were presidents over universities that were white, the Negro were still in a slave position. A president over one of the schools never entertains an African American in his me. Usually move guest to the dining room. Sometimes the guest would be moved into a guest cottage where they would have to only enter as servants. By no protest from the negroes, this showed cowards, and forever we will be cowards if we dont open up our mouths. It is ok for a white man to be qualified to have a position at a negro school teaching. Commend them. Some positions a white man is better trained to such subject, why object. But if an African American was in his own society under his kind, he can easily develop his own leadership in how not to be a coward and start to show his own individuality. Mentally, we will always be here if we tear each other down to depression. Instead of separation the system of education, we need to understand the sympathy of it. We should take in mind that that process of education is help lead together as one so the world can move better. For the person that truly understands that can truly call themselves an educator. Real education means to live life more easier, and inspire people to live more righteous. The concept of the word friend is a dangerous word for African Americans. When we tend to get in high position in life, we tend to keep underprivileged friends by our side. You can never tell when they will embarrass you in front of other. Just keep in mind that within education, as you move up, there are those that are jealous. The thought of having this education movement is to provide the southern Negroes a chance of education. Something especially to look at was medical school, even which, many would not admit Negroes because of the friction of race. We needed more institutions in the south just like Howard University for southerners because they were starting to become rushed. The shameful status of higher learning is due to the low standards of institutions toward the diploma. To get a job or hold one, you have to be competitive. As long as you dont have the drive to go for more, then you will not receive anymore. The assumption that any school wants you is over now. There should not be any argument against earning higher degrees. Let these degrees be a honor to the training with scholastic distinction. The degree isnt just a piece of paper to make money, its and opportunity of greatness to receive a new life of learning. The worst thing possible with getting an degree is having no idea how to make a living with it. We have always know something about agriculture, and in a land that is abundant, thats how we made a living. The role of business and education was supposed to be an uplift to the race but it still turned out less significant. Instead of going to college with just wanting to know how to work with machines, you should go and learn how to create a machine. Go for majors that will push you into a life that will make you successful. We more people, majoring in math and physics. Those two subjects alone, you will always have a job. As we move with our lives, we should invest money in some enterprises of our own to become successful. It has been discovered that people that never invest in Negro ownerships, always tries to exploit the business and try to find a fault to satisfy themselves. As miseducated Negroes, we would agree to it without actually doing our own research. Shockingly, proportion to the amount of capital invested Negro businesses manifest about as much as a white own business. If a black owner doesnt get his own kind to support will develop depression that he failed his kind, which would cause him to give up. The highly educated negroes believes that since the present day system of capitalism, we have no chance to climb up the economic sphere. There can be no objection to the radical change in time. As for trying to be educated, you cant fault a man for trying to become successful. Professors in this field are not prepared to do the work, and the heads of our institutions should be addressing themselves to study of a situation which threatens the negro with the economy. Our schools that are for trained, dont give us this point of view. We may occasionally learn the parts of stenography and accounting, but we dont know how to apply what we have studied. Our training gives us false conception of life, when we believe that the business world owes us a position of leadership. We have the idea of business training that we used to have of teaching that we could teach anything and study anything. Those that graduate from our business schools, lack the courage to go for working with commission. The majority wants us wants to receive a paycheck at the end of every month. We dont realize that in this day, its good to get paid for the work we have put in. People that do not realize life as what it is, is a horrible representation of business. From the point of view of industry and commerce, then, we show no mental power to understand the situation we find. We apparently read our race from the sphere of education and business. Foreigners see the opportunities to take our businesses and opportunities in which we are scared to take. The main problem is we do not have any people skills in salesmanship. It is sad that we do not understand or not willing to start our own enterprises which could turn into a large corporation one day. If we do not know how to take a chance, we would never know how to take control of the life that is around us. Training is necessary, for the large number of blacks running corporations have not learned business methods and do not understand the possibilities of the field in which they operate. Negro businesses are handicapped, which so, have not developed their own stability and the capacity for its growth. We do not take time to read the business literature and study how the market is doing. We stay in the dark because we do not take the time to get properly trained. Usually when the founder of the business passes away then the actual business dies with him or goes within pieces. All failures are not due to the black business. Often, the owner lacks common sense. If you have a business, stay within your business instead of worrying about others. Keep the managements going within itself. Only with this, we will then become true entrepreneurs. One of the main failures of education is of religion that is being taught. Of its illustration, it paints a picture. Most blacks still belong to these churches but the more educated seem to find their way to evangelical groups. These churches do not measure up to the standard set by school preachers. The church is the great asset of the race. It is connected as part of capital that our race must invest in. The church has taken the lead of education in the school for the race. In neglecting it, they are throwing away what they have, to obtain something which they do need. With many respects, the black churches during different generation become corrupt. Some people say we have not lost our interest in religion, that we have gone into churches with a more open minded view. And then we have a sort of contagious fever which takes away from the churches of their youth others of less formal education. A change of faith is all right in a sense, for those that are closed minded, they would create an argument. Religion is nothing but religion, if they hold up to the faith that they claim. The point here is that the ritualistic churches into which blacks have gone do not touch the masses, and they show no future with racial development. From respect to developing the masses, the black has lost its foundation in recent years. The attitudes of leaders were different then as they are today. Too many blacks go to school to study for test so they can just pass. This attitude is retarded and grows people towards selfishness. Some conditions show that undeveloped black has been left from those that supposed to help him. When a white man sees persons of his own race falling downward to disgrace, he does whatever he can to pick him back up in life. It is sad that that the only institution blacks own is the church. The education of the business, we lack capital, credit, and experience for us to receive wealth to get into a higher culture. Sometimes you will find as many as two store-front churches in a block where Negroes incorporate in heathen-like practices. Although born and brought in the south, Mr. Woodson has never saw such idolatrous tendencies ever. Another area said that we must have new way of doing things and we can call ourselves Methodist. Methodist and Baptists split up on the account of holding slaves. We as blacks chose to imitate them. All of the black Methodists in the world, if unite, would not need more than 12 bishops, and these would have time to direct the affairs of both Methodists and Baptists in a united church. The theology of foreigners too is important on unenlightened people. Whit bringing the joy of conquest to their own camp, they have confused the world with disputes which have divided the church and stimulated division and subdivision to the extent that it no longer functions as a Christian agency for the uplift of all men. While serving as the avenue of the oppressors propaganda, the black church has prevented the union of diversity and has kept the race too weak to overcome purposely taught Negroes. This is important to the control of the inferior race. Someone just sits back and plots while the other one acts. We must hold blacks responsible for following these ignorant to this nonsense with which they have confused thoughtless people. As what has been said before, we tend to do what we are told instead of asking for the meaning for our actions. Our leaders know better but because of their miseducation, many will always tend to be miseducated. In chapter 7, Dr. Woodson continues his discussion of the church. He mentions how in the past African Americans have been mis-educated based on training. Dr. Woodson references how the highly educated Negro has become so intellectual in his understanding of religion. We should not just allow ourselves to just not ask questions referring what study but question it. He also discusses the concept of rituals and how this does not help in racial development. Dr. Woodson also cautions African Americans that they must always remember that the African Americans learned their religion from the early White Methodist and Baptist who evangelized the slaves and the poor Whites. So the questions become, is the Black Church a pattern of the White mans church? Have Black churches become the dumping ground for uneducated people carrying the Bible? If we are still mis educated, then we are an imitation of the white church that was for slavery. We were segregated when we were taught or told what or how we were supposed to live under the bible. According to Dr. Woodsons findings, African Americans had been discouraged in the pursuit of the professions other than the ministry and teaching. Dr. Woodson noted several reasons why African Americans lacked degrees in fields such as medicine, law, architecture, etc. Some Black parents had failed to encourage their children to pursue professional degrees. Some Black professional schools had closed because of the small number of students enrolled. Woodson further asserted that these closings came at a very difficult time. Under the separate but equal doctrine established by the Supreme Court in Plessy v. Ferguson (1896), law schools were desperately needed to train lawyers to protect African Americans civil and political rights. Woodson also suggested that too many highly educated individual Woodson asserts the lack of political education among African Americans in the 1930s. This was due to actions taken by Whites. For years, textbooks produced specifically for Black students did not include the U.S. Constitution. One state legislature prohibited the inclusion of the Constitution in history textbooks citing the fear that Black students would read it and attempt to demand or even assert their rights. Black education had to have as its foundation, the assurance that Blacks would not compete with Whites. It was well understood that if by the teaching of history the White man could be further assured of his superiority and the Negro could be made to feel that he had always been a failure, and that the subjugation of his will to some other race is necessary the freedman, then, would still be a slave. As long as Southern apologists controlled what was in history textbooks, they could teach that slavery was a benevolent institution and that radical abolitionists such as William Lloyd Garrison and John Brown caused the unnecessary Civil War. Without knowledge of the changes in the U.S. Constitution, the civil rights established by the 13th, 14th, and 15th Amendments could be ignored and denied to Black citizens. Woodsons overall message in this chapter is captured in the quote: If you can control a mans thinking you do not have to worry about his action. When you determine what a man shall think you do not have to concern yourself about what he will do. If you make a man feel that he is inferior, you do not have to compel him to accept an inferior status, for he will seek it himself. If you make a man think that he is justly an outcast, you do not have to order him to the back door. He will go without being told and if there is no back door, his very nature will demand one.uals had perpetuated the belief that Black professionals were not capable of meeting the demands of their professions. This belief among some highly educated Blacks and Whites often discouraged Black students from pursuing professional degrees In chapter ten, Dr. Woodson emphasizes that there was a loss of vision. This loss of vision was due to African Americans not thinking for themselves. Dr. Woodson provides an example of this when he discusses some highly educated individuals. Denied participation in the higher things of life, the educated Negro himself joins, too, with ill designing persons to handicap his people by systematized exploitation. Dr. Woodson also discusses this loss of vision in terms of the lack of confidence. Dr. Woodson declared that the lack of confidence of the Negro in himself and in his possibilities is what has kept him down. Dr. Woodson emphasizes that until the Negro employs new ways of thinking, there will be no change in his condition, and he will always remain oppressed. In this chapter, Dr. Carter G. Woodson discusses why there is a greater need for service rather than leadership in Black Communities. He mentions how the African American community has had problems with its leadership in the past. Negroes often find themselves giving money and moral support to various persons and institutions that influence the race in the wrong wayà ¢Ã¢â€š ¬Ã‚ ¦ The race needs workers not leaders-workers will solve the problems which race leaders talk about and raise money to enable them to talk more and more In this chapter, Dr. Woodson discusses the concept of hirelings as opposed to public servants. A hireling is a person who is paid to serve. Dr. Woodson defines the real servant of the people as one who lives among them, thinks with them, feels for them, and perhaps dies for them. Dr. Woodson emphasizes the value of learning about Black history. He discusses how this history has not been taught, but European history has been promoted. When Woodson asked Black college administrators, they responded, We do not offer here any course in Negro history, Negro literature, or race relations, recently said a professor of a Negro college. We study the Negro along with other people.' However, Woodson believed, No one can be thoroughly educated until he learns as much about the Negro as he knows about other people. Unfortunately, Woodson reported that, Upon examining the recent catalogues of the leading Negro colleges, one finds that invariably they give courses in ancient, medieval, and modern Europe, but they do not give such courses in ancient, medieval, and modern Africa. As you explore this chapter, reflect on the impact that having an accurate understanding of African American history will have on current and future generations of all Americans. In chapter 14, Dr. Woodson describes a new program for the education of the Black American. The substance of Woodsons New Program centers around the study of Black life during the antebellum period. Ignorance of the antebellum era and the valuable cultural practices Africans brought with them from Africa must be addressed. These assumptions prevent current Black students from being equipped to handle the social problems of today. Woodson compares the aims of the New Program with the successful education of the Filipinos. The first highly educated Americans into the conquered Philippine Islands after the Spanish American War in 1898 tried to teach the Filipinos the same way and with the same material used to teach American children. This strategy met with failure. An insurance man, who had never been an educator, came up with a plan that worked. He realized that to teach the Filipinos, it was necessary to make the learning relevant to their daily lives. These children needed to be taught through the use of objects from their own culture. Using this strategy, Woodson suggests that the education of the Black American would emphasize Black American culture. The accomplishments of American heroes should not be ignored; but the accomplishments of Black Americans have to be given equal time, honor and respect. According to Dr. Woodson, schools were not preparing Black students to make a living. He argued that the schools that African American students attended had outmoded equipment that needed to be replaced by more advanced technology. He believed there should be a shift in the type of instruction that African Americans were given, and also in the educational approaches of those providing the instruction. Dr. Woodson further asserted that Black Americans needed to change the way they thought about and spent their money. He was particularly concerned with those African Americans who practiced conspicuous consumption, excessive and unnecessary purchases that give the impression that one has more money than one actually does. Woodson wrote, conspicuous consumption is a result of successful enterprise, not the road to enterprise. They [Blacks] should concentrate on the wise use of their money, and the evil that results from the misuse of it. What would be examples of conspicuous consumption in the present-day Black community? Above all, Woodson uses this chapter to argue that African Americans should adopt wise, informed, and astute business practices. These practices, he offers, will help African Americans achieve a strong and healthy economic future. Dr. Woodson believed that Black students need to go into professional arenas to serve members of the race. Black lawyers are needed to address certain aspects of law, which affect African Americans more than others. Black lawyers need to know more about the people that they serve to meet the special needs of these people. According to Woodson, in the past too many cases before the Supreme Court had been lost because the lawyers lacked the knowledge to present their cases properly to the court. Woodson suggested that law schools needed to expand course work in Constitutional law to prepare lawyers to protect the rights guaranteed by the Constitution. Because of the lack of desire on the part of some White physicians for physical contact with Black patients, Black doctors had a better chance of working among their people than the Black lawyers. However, all too often Negro doctors had entered the profession to increase their income and spend it on joyous living. Instead of spending money without thought or care, Woodson argued that these doctors needed to focus on research and dedication to the Black community. Woodson also felt that Black students should not limit their professional aspirations to medicine and law. Woodson also wanted African Americans to pursue careers in the arts. He wrote that African Americans had demonstrated an aptitude for the arts. However, because African Americans contributions were not always recognized in the United States, Woodson felt that the Black artist should seek appreciation for his or her craft in Europe or other places. In Europe, the Negro artist is not seen as an imitator, Woodson wrote. There is a desire among Europeans to view the art of the African not from the vantage point of the oppressor, but from the Negro himself. In chapter 17, Woodson placed a great deal of emphasis on politics. Woodson maintained that in politics, African Americans should not only be concerned with issues that concerned them exclusively, but they should address problems facing others as well. Woodson also argues that in politics, African Americans should not join or vote for a political party to reward the dead for some favors done in the distant past. This is clearly a reference to the practice of Black voters in the past supporting the Republican party because of Abraham Lincoln. Beyond politics, Woodson called for Black Americans to fully participate in the American economy. In addressing economic issues, Woodson argued that African Americans could make improvements in their social lives and contribute to the advancement of the entire society. Woodson suggested that African Americans ought to be radical in approaching economic and social change. This radicalism should come from within, or based on their experiences as formerly enslaved and impoverished workers in the American economy. Dr. Woodson emphasizes again the importance of studying and knowing African American History. He explains how many Blacks hate their history, but are taught torespect others history.

Essay --

Ronald Perkins Julialicia Case 12/8/2013 Troubles of Social Media In today’s society the youth of the world are almost fully dependent on technology and social media. They are participants of these websites without thinking about or being aware of the consequences of their constant abuse. These social sites are made to keep everyone in the world connected with each other. They were made to make news and the information of today accessible and relative to everyone. These good and honest intentions have been transformed into so much more. These websites such as Facebook, Twitter, Instagram, and the infamous Youtube are now used as a way to avoid or emphasize the troubles and problems of people’s everyday lives. A way for people to encourage and reinforce the stereotypes, trends, and other irrelevant and negative influences placed on society by pop culture. Everyone constantly points out the positive effects of these social medias without making notice of the many health problems they lead to in today’s youth. There are too many users and supporters of these social medias that do not understand some of the problems that are caused to by them. Social media can cause disorders like insomnia at a more advanced stage. Think of all your friends or even most of the youth as an example. Almost everyone uses social media all through the day and night and we can all agree on hearing or seeing someone make a post and comments well into the night on either Facebook or Instagram on several occasions. While there are some who love their sleep most of today’s youth spend their nights on social media. Studies have shown that there is a clear connection that the overuse of social media will lead to results in things like leaving comments, twe... ... some its many flaws such as ruining and preventing meaningful and face-to-face verbal and nonverbal connections. People tend to overuse and overdo the things that world has to offer that gives them the most joy or comfort. When people do this they take something that is wonderful and extraordinary and make them simplistic and harmful. I’m not saying a person shouldn’t use these social media in fear of obtaining a mental illness but to use them in moderation. To create a stable and balanced portion of time for the virtual world of wonder and limitless potential and the real world full of excitement and mystery. Isabella Mori, I. (2010, July 06). Social media and mental health. Retrieved from http://brainblogger.com/2010/07/06/social-media-and-mental-health/ Merriam-Webster.com. Depression.(n.d.). Retrieved from http://www.merriam-webster.com/dictionary/depression Essay -- Ronald Perkins Julialicia Case 12/8/2013 Troubles of Social Media In today’s society the youth of the world are almost fully dependent on technology and social media. They are participants of these websites without thinking about or being aware of the consequences of their constant abuse. These social sites are made to keep everyone in the world connected with each other. They were made to make news and the information of today accessible and relative to everyone. These good and honest intentions have been transformed into so much more. These websites such as Facebook, Twitter, Instagram, and the infamous Youtube are now used as a way to avoid or emphasize the troubles and problems of people’s everyday lives. A way for people to encourage and reinforce the stereotypes, trends, and other irrelevant and negative influences placed on society by pop culture. Everyone constantly points out the positive effects of these social medias without making notice of the many health problems they lead to in today’s youth. There are too many users and supporters of these social medias that do not understand some of the problems that are caused to by them. Social media can cause disorders like insomnia at a more advanced stage. Think of all your friends or even most of the youth as an example. Almost everyone uses social media all through the day and night and we can all agree on hearing or seeing someone make a post and comments well into the night on either Facebook or Instagram on several occasions. While there are some who love their sleep most of today’s youth spend their nights on social media. Studies have shown that there is a clear connection that the overuse of social media will lead to results in things like leaving comments, twe... ... some its many flaws such as ruining and preventing meaningful and face-to-face verbal and nonverbal connections. People tend to overuse and overdo the things that world has to offer that gives them the most joy or comfort. When people do this they take something that is wonderful and extraordinary and make them simplistic and harmful. I’m not saying a person shouldn’t use these social media in fear of obtaining a mental illness but to use them in moderation. To create a stable and balanced portion of time for the virtual world of wonder and limitless potential and the real world full of excitement and mystery. Isabella Mori, I. (2010, July 06). Social media and mental health. Retrieved from http://brainblogger.com/2010/07/06/social-media-and-mental-health/ Merriam-Webster.com. Depression.(n.d.). Retrieved from http://www.merriam-webster.com/dictionary/depression

Negative Effects of False Media Images :: Argumentative Persuasive Topics

The Negative Effects of False Media Images      Ã‚  Ã‚  Ã‚  Ã‚   Since the birth of communication, media has been used to convey information to those willing to absorb it. Beginning with publications and simple spoken words, and soaring to new heights in the twentieth century with radio, television, and the internet, media have been made accessible to people in every aspect of their daily lives. With such a strong hold on modern society, mass media have been able to shape popular culture and often influence public opinion. However, when abused, the power of media can harm the general population. Biased media tend to make people strive to be someone else's idea of perfect while subconsciously ignoring their own goals. Stereotypes formed by the media that include thin, tanned women, and wealthy, muscular men have led to a decline in self-acceptance. The majority of media today often present the perfect body to the public, hoping that consumers will strive to achieve fitness using a certain product or idea. While this form of adv ertising may somewhat increase a product's market share, many people suffer from inner conflicts as a result of failure to achieve the body of a top athlete or fashion model. Along with emotional conflicts, those influenced by the media have encountered physical problems, including bulimia, anorexia, and the employment of harmful dietary plans. Unless reality is discerned from what is presented in certain media, some people will continue to suffer. Consumers could find the truth more easily if media offered products advertised by normal people without all the extra glamor. In addition to this, if the public could view advertising only as something to get one's attention and not a portrayal of how one should look, there would be fewer problems. Until either is accomplished, the negative effects will be felt by the vulnerable, and companies will continue to make their money. Those consumers given a false impression about a product through various forms of media are the ones who suffer most from our society's portrayal of the perfect body. After being influenced by a television commercial or a magazine pictorial, certain people in this world will purchase an item hoping that the same success shown in the medium will be had by them as well. The truth of the matter is that this hardly ever happens. Every day, ugly people wear sensual cologne, and slow runners wear Carl Lewis track shoes.

History of Latino/a Immigration to the U.S. Essay -- Immigration

Eleanor Roosevelt said, â€Å"the future belongs to those who believe in the beauty of their dreams.† That statement holds strong for immigrants in America. Equal access to opportunities allows immigrants to achieve the American dream. Their success correlates with America’s success because of the contributions immigrants provide to America. Unfortunately, the current immigration policy in America denies many immigrants the American dream. It is crucial to understand the historical context of immigration in America. Initially, most immigrants were from Europe and were not restricted by any immigration laws. Now, most immigrants come from Latin America but are restricted to severe immigration laws. The Latino/a community is one of the most severely affected groups because the current immigration system disproportionally affects Latino/as. Recognizing how the experience of Latino/a immigrants have been both similar and different in the past from other immigrant groups and dispelling common misconceptions about Latino/as today bring an awareness how Latino/as are affected. Latino/a immigrants share similar experiences of anti-immigrant rhetoric just like other immigrant groups. Many Latino/as in America have faced negative comments based on their identity. For example, Rush Limbaugh, a radio host, expounds negative comments toward Latino/as, particularly Mexicans. He claimed that Mexicans are â€Å"a renegade, potential[ly] criminal element† that is â€Å"unwilling to work† (Media Matters for America, 2/28/06). These malice comments were similar to that of other immigrants. As other immigrant groups of non-English descent started arriving in America, there was an immigrant phobia towards the newcomers. During the mid-1700s, Benjamin Franklin said ... ...ves of immigrant groups such as the Indians, Chinese, and Germans have proved that prior policies have been based on anti-immigrant rhetoric at that time. Therefore, reforming the immigration policies today should not be based on racism, or nativism. In addition, it is important to dispel the misconceptions of the Latino/a immigrations today because it is a mistake to formulate polices based on preconceptions of racialized groups. Works Cited Aoki, Andrew, and Okiyoshi Takeda. Asian American Politics. Polity Pr, 2009. Print. Fernandez, Lilia. "Introduction to U.S. Latino/Latina History." History 324. The Ohio State University. Jennings Hall 0040, Columbus, OH, USA. Address. Media Matters for America n. pag. Web. . "World War II by the Numbers." National World War II Museum n. pag. Web. .

Analysis and Design of Software Architecture Essay

Outline 1 2 3 4 5 6 7 8 Development Process Requirements Quality Attributes Runtime QA Non-runtime QA Requirements Analysis: Example Architectural Analysis & Design Architectural Views Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 2 / 78 Development Process Methodology Diï ¬â‚¬erent software development processes have software architecture as a part of the process Rational uniï ¬ ed process Spiral development method Agile development method Evolutionary rapid development Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 3 / 78 Development Process Place of SA in SDP Figure: Source: Software Architecture Primer by Reekie, McAdam Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 4 / 78 Development Process Methodology After the initial requirements analysis but before software design The ï ¬ rst architecture is also a communication basis with the customer Inputs for the development of the architecture: 1 2 Requirements Context (technical, organizational, business, †¦) Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 5 / 78 Requirements Analysis At the beginning there is always a customer who wants a speciï ¬ c software system Customer â€Å"wishes† are always informal Interviews, some documents, some Excel tables, †¦ We need to analyze such informal records and structure it Requirements engineering is a huge ï ¬ eld but we just illustrate here one possibility Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 6 / 78 Requirements Analysis The results of the requirements analysis: 1 2 Functional requirements Non-functional requirements (a) Runtime qualities (b) Non-runtime qualities 3 Contextual requirements Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 7 / 78 Requirements Functional requirements A technical expression of what a system will do Arise from stakeholder needs Structured language: software requirements speciï ¬ cation Use cases: structured description of user interactions with the system Formal models: e.g. state-charts Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 8 / 78 Requirements Non-functional requirements Other needs than directly functional or business-related Generally expressed in the form of quality-attributes Runtime quality attributes Non-runtime quality attributes Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 9 / 78 Requirements Contextual requirements What technology is available? Expertise of the development team Previous experience of users/customers Technical, business, market, legal, ethical, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 10 / 78 Quality Attributes Need to address QAs Without any need for performance, scalability, †¦ any implementation of functionality is acceptable However, we always need to take into account the broader context E.g. hardware, technological, organizational, business, †¦ The functionality must be there but without proper addressing of QA it is worth nothing Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 11 / 78 Quality Attributes Inï ¬â€šuence on QAs Typically, a single component can not address a QA completely Any QA is inï ¬â€šuenced by multiple components and their interactions E.g. a UI component has a high degree of usability: however, usability of the system is compromised if a data management component has poor performance in accessing the data → users need to wait long → poor usability Components and their interactions → software architecture QAs are directly inï ¬â€šuenced by software architecture Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 12 / 78 Runtime QA PURS PURS (performance, usability, reliability, security) Performance: time performance, memory, disk, or network utilization Usability: human factors, easy to learn, easy to use, †¦ Reliability: availability, safety, †¦ Security: authentication, data protection, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 13 / 78 Runtime QA Performance Time performance is most obvious Measured in the number of operations per second Also, latency: the time from receiving an input and producing an output Other measures: memory, disk, network utilization or throughput Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 14 / 78 Runtime QA Performance Diï ¬â‚¬erent measures are typically traded oï ¬â‚¬ against each other E.g. increasing throughput may increase latency Time performance might be increased with more memory True performance of the system is not only deï ¬ ned by performance of single components But also by their interactions and the overall processes in the system Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 15 / 78 Runtime QA Performance factors Choice of algorithms Database design Communication Resource management Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 16 / 78 Runtime QA Choice of algorithms Performance of algorithms is measured by their complexity (big O) E.g. linear complexity: O(n) Running time increases in direct proportion to the size of the data E.g. polynomial complexity: O(n2 ) It does not scale: double size of the data – running time increased by factor of 4 Goal: O(nlog (n)) Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 17 / 78 Runtime QA Database design Performance of database queries can dominate the overall performance The design of the tables has enormous impact on the overall performance Techniques to improve it: lazy evaluation, replication, caching Some additional cost to manage replication and/or caching In-memory databases (real-time systems) Developing a new database (search engines) Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 18 / 78 Runtime QA Communication Network overhead Package data according to a protocol, sending data over network Each layer means additional overhead Think how to use network: packaging binary data as XML!? Use more compact formats, e.g. JSON vs XML Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 19 / 78 Runtime QA Resources management Overloaded components need to be avoided A chain is only as strong as its weakest link! E.g. a single-threaded shared resource is in use: all other threads are blocked Very diï ¬Æ'cult to track down Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 20 / 78 Runtime QA Usability Usability is a very rich ï ¬ eld If usability is important you will need a usability expert Combination of many factors: responsiveness, graphical design, user expectations, conï ¬ dence Measuring with time taken to complete task, error rate, time to response, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 21 / 78 Runtime QA Responsiveness and data availability An example of relations between QAs Usability requires that the system responds to user actions within a certain period of time If it is a complex system this need translates into performance along the path of the user action Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 22 / 78 Runtime QA Responsiveness and data availability Figure: Usability vs. Performance Source: Software Architecture Primer by Reekie, McAdam Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 23 / 78 Runtime QA Discussion on relations between QAs This diagram shows that we need to pay attention to tuning communication between B and Y Performance of the communication channel is a consequence of a usability requirement Do we need to support security of the communication channel? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 24 / 78 Runtime QA Discussion on relations between QAs This diagram shows that we need to pay attention to tuning communication between B and Y Performance of the communication channel is a consequence of a usability requirement Do we need to support security of the communication channel? We support QAs always only as a response to user needs Never because it is needed anyway! Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 24 / 78 Runtime QA Discussion on relations between QAs If we support security even if it is not needed Very often QAs exercise opposing forces on the system Security requires a lot of checking: performance will suï ¬â‚¬er → usability will suï ¬â‚¬er A minimalistic approach: develop only what is required! Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 25 / 78 Runtime QA Reliability In traditional engineering disciplines reliability measures the failure rate of the system Failure rate speciï ¬ ed by mean time to failure MTTF A related measure: mean time between failures MTBF MTTR is mean time to repair A is availability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 26 / 78 Runtime QA Reliability MTBF = MTTF + MTTR A= A= MTTF MTBF MTTF MTTF +MTTR E.g. expected availability of Web systems: Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 27 / 78 Runtime QA Reliability MTBF = MTTF + MTTR A= A= MTTF MTBF MTTF MTTF +MTTR E.g. expected availability of Web systems: 1 (always up-and-running) =⇒ MTTF → ∞ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 27 / 78 Runtime QA Reliability Increasing reliability involves testing However, impossible to prove that a system is correct, i.e. without bugs Acceptability of errors depends on the  nature of a system Personal desktop use: bugs are typically tolerated Enterprise level: medium reliability level High-reliable systems: bugs can be fatal Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 28 / 78 Runtime QA Security Increasingly important aspect of systems is security Because systems are exposed to threats Especially networked systems As with other QAs security is a set of related responses to user needs Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 29 / 78 Runtime QA Authentication Requirement for identiï ¬ cation of users with a system Users present credentials so that the system can identify them Typically username and password Other forms: certiï ¬ cates, smart cards, biometric features Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 30 / 78 Runtime QA Authorization After authentication authorization which functions and what data is available for users This information is captured in an authorization model Access control lists (ACL) deï ¬ ne who can access and how a resource might be accessed E.g. read access, write access, delete access, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 31 / 78 Runtime QA Authorization Drawbacks of ACLs It is resource based, e.g. a page in a CMS Often, authorization needs to address functions or tasks Also, managing of ACLs is diï ¬Æ'cult, e.g. subresources of resources Also, performance problems with checking Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 32 / 78 Runtime QA Authorization Another model: role-based access control (RBAC) Roles are used to manage many-to-many relations between users and permissions Roles are used to represent the job functions, e.g. author, teacher, student in an E-learning system Permissions are modeled as parts of roles, e.g. create page, create tests, †¦ Users are than assigned to a role and acquire automatically permissions of that role Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 33 / 78 Non-runtime QA MeTRiCS MeTRiCS (maintainability, evolvability, testability, reusability, integrability, conï ¬ gurability, scalability) Maintainability: how easy can you ï ¬ x bugs and add new features Evolvability: how easy your system copes with changes Testability: how easy can you test the system for correctness Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 34 / 78 Non-runtime QA MeTRiCS Reusability: how easy is to use software elements in other contexts, e.g. a software library Integrability: how easy you can make the separately developed components of the system work correctly together Conï ¬ gurability: how easy can a system be conï ¬ gured for diï ¬â‚¬erent installations and target groups Scalability: how easy the system copes with a higher performance demand Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 35 / 78 Non-runtime QA Maintainability This QA considers the whole lifecycle of a system What happens during system operation? Property that allows a system to be modiï ¬ ed after deployment wirh ease E.g. extensible, modiï ¬ ed behavior, ï ¬ xing errors Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 36 / 78 Non-runtime QA Maintainability At the design and implementation level Code comments Object-oriented principles and design rules Consistent programming styles Documentation Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 37 / 78 Non-runtime QA Maintainability Maintainability is very important because any software system will change over time Experience shows that such changes tend to degrade the system over time Software systems are subject to entropy The cumulative eï ¬â‚¬ect of changes degrades the quality of the system Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 38 / 78 Non-runtime QA Maintainability The systems tend to become messy systems Regardless of how a nice plan you had at beginning Design for change – recollect OO design rules Abstract messy parts of the system so that they can be exchanged Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 39 / 78 Non-runtime QA Maintainability Don’t be afraid to refactor and rewrite and redesign Each software vendor does this with major versions Create throw-away prototypes Think out-of-box and innovate Don’t always follow a hype – very often nothing new in hypes E.g. Web services Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 40 / 78 Non-runtime QA Testability Means to improve testability Test cases: if something fails there is a bug Separation of the testing framework and the system, i.e. testing with scripts from outside Logging Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 41 / 78 Non-runtime QA Conï ¬ gurability Ability of a system to vary its operational parameters without re-compiling or re-installing E.g. selecting appropriate database drivers, conï ¬ guring network parameters, †¦ Typically, realized by a set of conï ¬ guration ï ¬ les E.g. Apache Web server conï ¬ guration ï ¬ le sets host name, virtual hosts, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 42 / 78 Non-runtime QA Conï ¬ gurability Conï ¬ gurability interacts with other QAs such as testability, maintainability, reliability High degree of conï ¬ gurability tends to have a negative impact on those QAs Testing of diï ¬â‚¬erent system conï ¬ guration becomes more diï ¬Æ'cult → reliability compromised Conï ¬ gurable components will be strongly parametrized → decreased maintainability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 43 / 78 Non-runtime QA Scalability Ability of a system to increase its capacity without re-compiling or re-installing E.g. serving additional Web pages means only copying these Web pages into a Web server ï ¬ le system Sometimes increasing capacity means increasing hardware, e.g. Web server clusters Managing user session on the client side, means only providing additional code-on-demand from the server Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 44 / 78 Requirements Analysis: Example System description Web-based Network Analysis Tool: W-NAT A simple and usable system for network analysis is needed. Networks are entities that contain not only individuals but also their connections with other individuals (see e.g. 3 for an example). The system accepts a network representations as a list of pairs of connected nodes stored in a dataset ï ¬ le. Nodes are represented as integers. An edge between two nodes is stored as a line containing two nodes delimited by a tabulator. Users might upload datasets to the systems and store them for further analysis. Each user might upload multiple datasets and can execute various analysis on those datasets. The system keeps the track of the analysis history for each user. Users may calculate degree distributions, network diameter, clustering coeï ¬Æ'cient, connectivity measures, singular values, and diï ¬â‚¬erent centrality measures. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 45 / 78 Requirements Analysis: Example System description Web-based Network Analysis Tool: W-NAT Users can execute various calculations on multiple datasets in parallel. The system must not be blocked if a calculation is currently under way. Rather it should be possible to start a new calculation, or view previous calculations, etc. In case of longer calculations the system needs to notify the user by e-mail when the calculation is over. The results of the calculations should be available in textual and in graphical form. All results can be also downloaded to a local computer. The system will be used by a group of students that learn the basics of network analysis. It is expect that at any times the system will be used by multiple users executing multiple calculations. Since the system is primarily an educational tool it needs to be didactically sound, i.e. simplicity and usability are very important. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 46 / 78 Requirements Analysis: Example System description 6 How to search in a small world Pajek Figure 2: HP Labs’ email communication (light grey lines) mapped onto the organizational hierarchy of HP Labs constructed out the e-mail communication. Figure: Social network(black lines). Note that communication tends to â€Å"cling† to of formal organizational chart. From: How to search a social network, Adamic, 2005. with one another. The h-distance, used to navigate the network, is computed as follows: individuals have h-distance one to their manager and to everyone they share a manager with. Distances are then recursively assigned, so that each individual has h-distance 2 to their ï ¬ rst neighbor’s neighbors, and h-distance 3 to their second Denis Helic (KMI, TU neighbor’s neighbors, etc. SA Analysis and Design Graz) Oct 19, 2011 47 / 78 Requirements Analysis: Example System description Web-based Network Analysis Tool: W-NAT The system is a Web-based system and the users should be able to operate the system by using a standard Web browser. The users need not install any additional plugins to operate the system. User perceived performance of the system should be acceptable. In addition, standard Web usability concepts need to be followed. In particular, browser back button must be working at all times and it should be possible to bookmark pages at all times. Finally, standard Web design principles should be satisï ¬ ed, meaning that pages are valid (X)HTML pages in at least HTML Transitional. The system needs to support cross browser compatibility. Further, each page and each important application state needs to have a unique and human-readable URL. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 48 / 78 Requirements Analysis: Example Functional requirements UR1: The system is a network analysis tool. The system can calculate the following measures. UR1.1: UR1.2: UR1.3: UR1.4: UR1.5: Out-degree distribution In-degree distribution Cumulative out-degree distribution Cumulative in-degree distribution Hop plot Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 49 / 78 Requirements Analysis: Example Functional requirements UR1: The system is a network analysis tool. The system can calculate the following measures. UR1.6: Clustering coeï ¬Æ'cient UR1.7: Distribution of weakly connected components UR1.8: Distribution of strongly connected components UR1.9: Left singular vector UR1.10: Right singular vector Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 50 / 78 Requirements Analysis: Example Functional requirements UR1: The system is a network analysis tool. The system can calculate the following measures. UR1.12: UR1.12: UR1.13: UR1.14: UR1.15: Network singular values Degree centrality Closeness centrality Betweenness centrality Eigenvector centrality Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 51 / 78 Requirements Analysis: Example Functional requirements UR2: Networks are stored in dataset ï ¬ les. UR3: The dataset ï ¬ le has the following format. NodeID1 NodeID2 UR4: Users can upload multiple datasets to the system. UR5: To perform an analysis users select a dataset and then choose a measure to calculate. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 52 / 78 Requirements Analysis: Example Functional requirements UR6: For each user and for each dataset the system manages a history of calculations. UR7: Users may initiate multiple calculations simultaneously. UR8: When a calculation is started the system is not blocked. UR9: The system notiï ¬ es users about a ï ¬ nished calculation by e-mail. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 53 / 78 Requirements Analysis: Example Functional requirements UR6: For each user and for each dataset the system manages a history of calculations. UR7: Users may initiate multiple calculations simultaneously. UR8: When a calculation is started the system is not blocked. UR9: The system notiï ¬ es users about a ï ¬ nished calculation by e-mail. When is this notiï ¬ cation needed? If the user is logged out? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 53 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Which form? Format? Graphics format? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Which form? Format? Graphics format? UR11: Users can download the calculation results. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Which form? Format? Graphics format? UR11: Users can download the calculation results. Single results? All results? Archived, how archived? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Which form? Format? Graphics format? UR11: Users can download the calculation results. Single results? All results? Archived, how archived? UR12: Users can register with the system. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Which form? Format? Graphics format? UR11: Users can download the calculation results. Single results? All results? Archived, how archived? UR12: Users can register with the system. How register? E-mail? Captcha? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Functional requirements UR10: The calculation results are presented in a textual as well as in a graphic form. Which form? Format? Graphics format? UR11: Users can download the calculation results. Single results? All results? Archived, how archived? UR12: Users can register with the system. How register? E-mail? Captcha? UR13: Users can login and log out. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 54 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Security Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Security UR4: User-perceived performance must be acceptable Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Security UR4: User-perceived performance must be acceptable Performance and Usability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Security UR4: User-perceived performance must be acceptable Performance and Usability How many seconds at max users can wait? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Security UR4: User-perceived performance must be acceptable Performance and Usability How many seconds at max users can wait? UR5: Web-based system should be available at all times. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR1: The system is simple, usable and didactically sound. Usability UR2: The system needs to support multiple users simultaneously. Performance How many users? UR3: Authentication should be supported. Security UR4: User-perceived performance must be acceptable Performance and Usability How many seconds at max users can wait? UR5: Web-based system should be available at all times. Reliability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 55 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability UR7: Extending the system with new metrics. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability UR7: Extending the system with new metrics. Evolvability, reusability, maintainability, testability, integrability, conï ¬ gurability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability UR7: Extending the system with new metrics. Evolvability, reusability, maintainability, testability, integrability, conï ¬ gurability UR8: Reliability of a Web-based system. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability UR7: Extending the system with new metrics. Evolvability, reusability, maintainability, testability, integrability, conï ¬ gurability UR8: Reliability of a Web-based system. Testability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability UR7: Extending the system with new metrics. Evolvability, reusability, maintainability, testability, integrability, conï ¬ gurability UR8: Reliability of a Web-based system. Testability UR9: Multiple users. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Non-functional requirements UR6: Human-readable URLs. Evolvability, reusability, maintainability, testability, integrability UR7: Extending the system with new metrics. Evolvability, reusability, maintainability, testability, integrability, conï ¬ gurability UR8: Reliability of a Web-based system. Testability UR9: Multiple users. Scalability Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 56 / 78 Requirements Analysis: Example Contextual requirements UR1: Web browser. UR2: Valid (X)HTML, at least (X)HTML Transitional. UR3: No browser plugins are allowed. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 57 / 78 Architectural Analysis & Design Analysis We analyze the requirements and try to identify so-called key concepts Understanding of the domain Static part of the domain We also try to identify key process and activities Dynamic part of the domain Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 58 / 78 Architectural Analysis & Design Design Design is the process of creating models (recollect the deï ¬ nition of SA) Two basic types of architectural models Structure and behavior Architectural structure is a static model of a system (i.e. how the system is divided into components) Architectural behavior is a dynamic model of a system (i.e. how the components interact with each other to perform some useful work) Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 59 / 78 Architectural Analysis & Design Architectural structure The division of a system into components and connectors To represent the model: box-and-lines diagrams (to see at a glance important concepts) It is important to remember that diagrams are only representations of the model Diagrams must always be accompanied by additional material such as text, data models, mathematical models, etc. The combination of diagrams and additional material is an architectural model Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 60 / 78 Architectural Analysis & Design Architectural structure What is a component? What is a connector? Components might be subsystems, separate processes, source code packages, †¦ Connectors might be network protocols, method invocations, associations, †¦ The combination of diagrams and additional material is an architectural model Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 61 / 78 Architectural Analysis & Design Architectural structure Figure: Example of an architectural structure Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 62 / 78 Architectural Analysis & Design Architectural structure In the diagram we have one user-interface and one database component But what is the criteria for deciding what is a component? Separate program modules? Separate threads or processes? Conceptual or functional division? And what about connectors? Network protocols? Callbacks? Request/response cycles? Method invocations? Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 63 / 78 Architectural Analysis & Design Architectural structure What is the level of granularity of a diagram? E.g. for a Web-based system, components are servers and browsers and connector is HTTP But, components of a server are HTTP parser, ï ¬ le I/O, cache, plug-ins, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 64 / 78 Architectural Analysis & Design Architectural structure Comparison with OO: a component is an object and a connector is a message sent between two objects Because models in OO are very well deï ¬ ned Therefore, we need additional information that accompanies diagrams To describe criteria for decomposition and provide explanations on granularity Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 65 / 78 Architectural Analysis & Design Architectural behavior Complementing structure is architectural behavior Interaction of system elements to perform some useful work Functionality vs. behavior Functionality is what the system can do and behavior is the activity sequence Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 66 / 78 Architectural Analysis & Design Architectural behavior Example: Accessing a tweets document Request is sent to the Web presentation layer That layer forwards the request to the application logic, e.g. TweetDeck TweetDeck contacts TweetViews to obtain a particular template, then retrieves the data from TweetDB wraps it into an HTML response and sends the response to TweetUI Functionality allows me to display a tweets document, behavior is the sequence of activities that makes it happen Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 67 / 78 Architectural Analysis & Design Architectural behavior Each component has a set of responsibilities Behavior is the way how these responsibilities are exercised to respond to some event An event may be an action of the user or an event from an external system A particular behavior is an event plus a response in the form of a sequence of component responsibilities Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 68 / 78 Architectural Analysis & Design Architectural behavior To represent behavioral models we use use-case map notation by Buhr A use-case map consists of a trace drawn through a structural diagram of the system The path of the trace through a structural diagram shows the sequence of activities Each crossing of a component by the trace indicates exercising of a responsibility Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 69 / 78 Architectural Analysis & Design Architectural behavior Figure: Types of traces in use-case maps Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 70 / 78 Architectural Analysis & Design Architectural behavior (a) Single trace – all responsibilities exercised sequentially (b) Two traces are consecutive: Equivalent to single trace but shows that continuation is triggered by another event (c) And-Fork: The traces after the line are potentially concurrent (run in parallel) Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 71 / 78 Architectural Analysis & Design Architectural behavior Figure: Types of traces in use-case maps Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 72 / 78 Architectural Analysis & Design Architectural behavior (a) N-Way And-Fork: the trace after the fork may be replicated an arbitrary number of times (b) Or-Fork: The trace is split and activity proceeds along one or another path (c) Seq-Fork: The traces after the line are followed in the order indicated by the arrow Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 73 / 78 Architectural Analysis & Design Architectural behavior Figure: Example of architectural behavior Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 74 / 78 Architectural Views Architectural views We can examine a system from diï ¬â‚¬erent points of view Diï ¬â‚¬erent kinds of views Conceptual: components are set of responsibilities and connectors are ï ¬â€šow of information Execution: components are execution units (processes) and connectors are messages between processes Implementation: components are libraries, source code, ï ¬ les, etc and connectors are protocols, api calls, etc. Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 75 / 78 Architectural Views Architectural views There are other models as well We will mention them but we will investigate only previous three models Data model describes the data Physical model describes servers, ï ¬ rewalls, workstations, †¦ Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 76 / 78 Architectural Views Architectural views Each view provides diï ¬â‚¬erent information about the structure of the system Each view addresses a speciï ¬ c set of concerns All views taken together is the primary means of documenting software architecture Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 77 / 78 Architectural Views Architectural views The conceptual architecture considers the structure of the system in terms of its domain-level functionality The execution architecture considers the system in terms of its runtime structure The implementation architecture considers the system in terms of its build-time structure Denis Helic (KMI, TU Graz) SA Analysis and Design Oct 19, 2011 78 / 78