Download e-book for iPad: Object Oriented Reengineering Patterns (The Morgan Kaufmann by Serge Demeyer

By Serge Demeyer

ISBN-10: 0080512992

ISBN-13: 9780080512990

ISBN-10: 1558606394

ISBN-13: 9781558606395

The documentation is lacking or out of date, and the unique builders have departed. Your crew has restricted knowing of the procedure, and unit exams are lacking for lots of, if no longer all, of the elements. if you happen to repair a malicious program in a single position, one other malicious program pops up elsewhere within the approach. lengthy rebuild instances make any switch tough. All of those are symptoms of software program that's with regards to the breaking point.Many platforms may be upgraded or just thrown away in the event that they now not serve their function. Legacy software program, notwithstanding, is important for operations and desires to be always on hand and upgraded. how will you decrease the complexity of a legacy process sufficiently in order that it could possibly stay used and tailored at appropriate cost?Based at the authors' business studies, this ebook is a consultant on how you can opposite engineer legacy platforms to appreciate their difficulties, after which reengineer these platforms to satisfy new calls for. styles are used to elucidate and clarify the method of figuring out huge code bases, accordingly remodeling them to fulfill new requisites. the main perception is that definitely the right layout and association of your approach isn't really anything that may be glaring from the preliminary necessities by myself, yet really because of realizing how those standards evolve. * Describes the best way to opposite engineer a monolithic process to appreciate the way it particularly works and the way to spot strength problems.* contains reengineering styles that take on famous reengineering concepts usually encountered in object-oriented programming, corresponding to introducing polymorphism, factoring out universal habit, detecting duplicated code, and realizing design.* exhibits the right way to construct a tradition of continuing reengineering for reaching versatile and maintainable object-oriented platforms.

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XDoctor also exploits the Internet for the transaction processing with the health insurance companies. To ensure its position in the market, your company has purchased XDoctor and now wants to recover as m u c h as possible from the deal. In particular, they want to lift the Internet functionality out of XDoctor to reuse it in proDoc. You are asked to make a first evaluation and develop a plan on how to merge the two products into one. At the outset, there is very little known about the technical details of the competing product.

Wrapping, for example, may seem to be a workaround, but it may be the right solution if the real problem is just with the interface to a legacy component. 24 C H A P T E R 2 SettingDirection PATTERN If It Ain't Broke, Don't Fix It Problem Solution Discussion Which parts of a legacy system should you reengineer and which should you leave as they are? Only fix the parts that are "broken"~those that can no longer be adapted to planned changes. Change for change's sake is not necessarily a good thing.

Why was it so easy or so difficult to fix that particular bug? These kinds of questions are good starters because they show that you are interested in the maintenance work. Answering the questions also gives the maintainers the opportunity to show what they excel at, which will make them less protective of their jobs. Finally, the answers will provide you with some concrete examples of maintenance problems you might use in later, more high-level discussions. 9 How does the maintenance team collect bug reports and feature requests?

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Object Oriented Reengineering Patterns (The Morgan Kaufmann Series in Software Engineering and Programming) by Serge Demeyer


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