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You may love XP or you may hate it, but Extreme Programming Explained will force you to take a fresh look at how you develop software. * Don't write and maintain implementation documentation-communication in XP projects occurs face-to-face, or through efficient tests and carefully written code. * Develop infrastructure and frameworks as you develop your application, not up-front-delivering business value is the heartbeat that drives XP projects. * Don't conduct complete up-front analysis and design-an XP project starts with a quick analysis of the entire system, and XP programmers continue to make analysis and design decisions throughout development. * Don't force team members to specialize and become analysts, architects, programmers, testers, and integrators-every XP programmer participates in all of these critical activities every day.
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Why is XP so controversial? Some sacred cows don't make the cut in XP: * Putting a minimal system into production quickly and growing it in whatever directions prove most valuable.
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* Starting projects with a simple design that constantly evolves to add needed flexibility and remove unneeded complexity.
#Extreme programming explained pdf software
* Producing all software in pairs, two programmers at one screen. * Integrating and testing the whole system-several times a day. * Writing unit tests before programming and keeping all of the tests running at all times. Waterfall model inspired by civil engineering Civil engineering metaphor is not perfect. XP is an agile software development framework that helps us produce. * Distinguishing between the decisions to be made by business interests and those to be made by project stakeholders. wrote the book Extreme Programming explained in 1999, though he got out of the. XP recognizes that projects have to work to achieve this reduction in cost and exploit the savings once they have been earned. This new lightweight methodology challenges many conventional tenets, including the long-held assumption that the cost of changing a piece of software necessarily rises dramatically over the course of time. Yet they can consistently deliver value to a business and remain under control.Įxtreme Programming (XP) was conceived and developed to address the specific needs of software development conducted by small teams in the face of vague and changing requirements.
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Software development projects can be fun, productive, and even daring.
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