Showing posts with label crystal. Show all posts
Showing posts with label crystal. Show all posts

The Language Revolution (Themes for the 21st Century) Review

The Language Revolution (Themes for the 21st Century)
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The Language Revolution (Themes for the 21st Century) ReviewDouglas Adams' "Hitchhiker's Guide to the Galaxy" series is often touted as a trilogy in five parts. Linguist David Crystal has also written a supernumerary trilogy. In the first book of the trilogy, "English as a Global Language" (1997), Crystal discusses the rise of English as a universal language and implications for the future. The second book, "Language Death" (2000), stands in antithesis to the first, and considers the implications involved when speech communities give up their heritage languages in preference for languages of wider venue. In the third book of the trilogy, "Language and the Internet" (2001), Crystal considers how computer-assisted communication (email, instant messaging, and so on) is changing the way language is used. Now Crystal has written a fourth book, which summarizes the themes of the first three books and ties them together.
English is rapidly becoming a world language. Approximately a quarter of the world's population can communicate in English, and among those only about a quarter are native speakers of the language. This means that English no longer "belongs" to the English speaking countries, but rather to the world at large. No doubt the language will be greatly influenced by the cultures of these new English speakers. However, as Crystal points out, English has always been a "vacuum cleaner of a language" (p. 27), absorbing new vocabulary and even syntax from the other languages it has come into contact with. Thus, while English will continue to expand in its role as the global language, it will also change drastically.
Crystal also considers the possibility that English will splinter into mutually unintelligible languages as Vulgar Latin split into the Romance languages a millennium and a half ago. In addition to the traditional division into British and American dialects of English, the last decades of the twentieth century has also seen the rise of non-native dialects of English, such as Singapore English, Japanese English, and so on. Crystal believes that dialects arise because speech communities use linguistic distinctiveness as badges of group identity. However, it is more likely that the direction of causality is in reverse; that is, dialects arise because of relative isolation, and these dialects become distinguishing features of the people who use them.
Languages, like species, arise, flourish, decay and become extinct, and this is a process that has been going on since the beginning. However, it is predicted that about half of the world's six thousand languages will become extinct during the twenty-first century, due mainly to the fact that the world is becoming more unified. To participate in the new global marketplace, people need to speak English, and they may see little benefit in passing their heritage language on to their children. Crystal views language death as on par with species extinction, describing the loss of linguistic diversity as "cataclysmic" (p. 47), "language extinction on a massive and unprecedented scale" (p. 50), and a "crisis in linguistic ecology" (p. 117).
However, Crystal's alarmist attitude is unwarranted. Neither genocide nor oppressive language policies is behind the current trend toward language extinction. Rather, it is a grass-roots movement toward global linguistic unification. Indeed, his call for active government in revitalizing endangered languages will likely be perceived by many as a coercive policy to exclude minorities from engagement in the larger society. Generally, languages do not die because their speakers die; rather, they die because their speakers no longer teach them to their children. Thus, attempts at endangered-language revitalization amount to nothing more than vain attempts to stem the inexorable forces of change.
Crystal moves on to discuss how computers have impacted language use. Computer-assisted communication has brought on the third revolution in the history of language. The first revolution was the invention of spoken language at least fifty thousand years ago; this new ability to communicate (even to think) led to an explosion of cultural and technological advances. The second revolution was the invention of writing about five thousand years ago. The ability to record language allowed humans to accumulate knowledge and transmit it across both space and time, and this has led to an even greater cultural and technological progress. The third revolution is computer-assisted communication, which is molding a new mode of language that is neither speech nor writing but rather something altogether new. The ability to access and transmit information immediately anywhere in the world is already having a significant impact on society.
These three topics are tied together with the observation that language change is inevitable. Although purists lament the deterioration of the language, Crystal notes than language change is always innovative and expansive, not deleterious. When languages borrow or invent new words, they do not replace the traditional lexicon. Rather, they find a place alongside the existing vocabulary, enabling speakers to express new meanings and nuances. Crystal is to be applauded for his progressive outlook toward language change. However, one wishes that he would understand language extinction as part of this same unavoidable process of language change.
Finally, Crystal's comments on bilingualism are enlightening. He points out that over half of the world's population is at least bilingual. Furthermore, he notes that there seems to be no limit to the number of languages that children can learn if they are exposed to them early enough. Indeed, Crystal sees a future where bilingualism is the norm; that is, people would speak their heritage language at home and locally, while communicating in some form of world English internationally.
Those who have already read the first three books in the trilogy will find nothing new in the fourth book. On the other hand, the "The Language Revolution" provides a nice summary of Crystal's major concern, namely the status of language in the twenty-first century. He neatly summarizes the issues concerning the rise of global English, the disappearance of indigenous languages and the effect of new technology on how language is used. This little book gives plenty to think about for anyone concerned with these issues.The Language Revolution (Themes for the 21st Century) OverviewWe are living through the consequences of a linguistic revolution. Dramatic linguistic change has left us at the beginning of a new era in the evolution of human language, with repercussions for many individual languages.In this book, David Crystal, one of the world's authorities on language, brings together for the first time the three major trends which he argues have fundamentally altered the world's linguistic ecology: first, the emergence of English as the world's first truly global language; second, the crisis facing huge numbers of languages which are currently endangered or dying; and, third, the radical effect on language of the arrival of Internet technology.Examining the interrelationships between these topics, Crystal encounters a vision of a linguistic future which is radically different from what has existed in the past, and which will make us revise many cherished concepts relating to the way we think about and work with languages. Everyone is affected by this linguistic revolution.The Language Revolution will be essential reading for anyone interested in language and communication in the twenty-first century.

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The Business Value of Agile Software Methods: Maximizing Roi With Just-in-time Processes and Documentation Review

The Business Value of Agile Software Methods: Maximizing Roi With Just-in-time Processes and Documentation
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The Business Value of Agile Software Methods: Maximizing Roi With Just-in-time Processes and Documentation Review
"The business value of agile software methods" is an important book. It takes existing research in the return of agile methods and tries to quantify them into different financial measures. However, I personally was not a big fan of the book as it all felt a little too good to be true. Next to that, the book contained some parts that, in my opinion, are clear misunderstandings about Agile methods. I'll mention some of these at the end of this review.
The book is only about 200 pages and contains 24 short chapters. The initial chapters provide an overview of agile methods, different types, their history and some of the different practices. Chapter 11 does an ... rather interesting... comparison of different agile methods. Chapter 12 discusses what kind of metrics would be applicable for measuring agile methods and why they are different from traditional methods.
Most of the research work starts in chapter 13. This chapter summarizes the results of different agile development surveys that were done. Then chapter 14 introduces cost/benefits of Agile methods (on which the further calculations are based). These are done for five groups "pair programming", "test-driven development," "Extreme Programming," "Scrum," and "Agile Methods (in general)". Chapter 15 discusses the different metrics that will be calculated in Chapter 17-22 which are Cost, Benefit, ROI, NPV, and Real Options Analysis. All chapters show an enormous ROI for implementing agile methods. Chapter 22 summarizes the earlier chapters, 23 does a comparison with traditional methods (CMM) and 24 is a closing chapter that speculates about the future of Agile methods.
When reading this book, I had a couple of annoyances, a couple wrong things, and a couple metrics that seem unbelievable to me.
I'll start with some annoyances. The book is extremely repetitive--it could probably have written in 20% of the current text. The most annoying repetition was the sentence "Agile methods use right-sized, just-enough, and just-in-time x to maximize business value." This sentence is repeated over and over again. I'm not a fan of this kind of popular language, but the repetition made it much worst. Other annoyances were minor. For example the author keeps repeating that a Scrum cycle is 30 days, but then in the Scrum explanation says 2-4 weeks (which is more common nowadays).
Then some misinformed sentences. The description of test-driven development was shallow and missed the design aspect of TDD. For example, the authors state (p38) "test-driven development is a form of dynamic analysis, quality assurance, and verification and validation"... completely missing the -driven part. Similarly, the practice of simple design is not explained well (p51). The authors state that simple design relates to having the fewest number of methods and classes whereas, in my experience, simple design often lead to more methods and classes... just a lot smaller ones. More serious, on p79, the authors propose methods related to working software... but not of the proposed metrics relate to... working software. Instead they suggest metrics such as iteration size, iteration frequency, operational/validated iterations (no clue what that means).
Then to the disbelieve. My first observation was that all the ROI metrics were very positive. For example the ROI of pair programming is 1500% !! I pair program often, enjoy it, and think it has a positive ROI... but 1500% sounds a little high to me. I don't have the facts to challenge this number, its the only number I've seen... it just seems too good to be true. Which does brings me to the subject... it was a little unclear to me what data this was based on.
Even with the above critique, this was not a bad book. Considering that the goal of the book was *not* to describe agile methods but to describe the research of the authors related to the ROI of Agile methods. In fact, this is an important job and will definitively help people who are not interested in knowing the details but need to make decisions on whether to try-out agile development or not. For that reason, I'll go for 3 stars. If you do not have the need to convince anyone with these numbers, then I would not recommend reading this book. If you do need to convince someone, then perhaps the ROI calculations in this book will help.
The Business Value of Agile Software Methods: Maximizing Roi With Just-in-time Processes and Documentation OverviewThe Business Value of Agile Software Methods offers a comprehensive methodologyfor quantifying the costs and benefits of using agile methods to create innovative software products and shows a complete business value comparison between traditional and agile methods. It provides a roadmap for linking agile methods tomajor industry standards such as the project management, systems, and software engineering bodies of knowledge and identifies a set of critical factors for succeedingwith agile methods every time.Key Features:--Identifies the major types and kinds of agile methods, along with the major forms of best practices, as a pretext for mixing and matching them to create super-hybrids--Introduces a complete family of metrics, models, and measurements for estimating the costs, benefits, return on investment, and net present value of agile methods, and includes numerous how to examples--Provides the first comprehensive compilation of cost and benefits data on agile methods from an analysis of hundreds of research studies, and introduces and illustrates the industrys first top-down parametric models for estimating agilemethods costs and benefits--WAV offers numerous free downloadable training and consulting briefings, cost and benefit spreadsheets, release planning templates, metrics for agilemethods, and an ROI/business value calculator available from the WebAdded Value Download Resource Center at jrosspub.com

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