Download Agile Modeling: Effective Practices for eXtreme Programming by Scott Ambler PDF

By Scott Ambler

The 1st e-book to hide Agile Modeling, a brand new modeling approach created particularly for XP initiatives severe Programming (XP) has created a buzz within the software program improvement community-much like layout styles did numerous years in the past. even if XP provides a technique for quicker software program improvement, many builders locate that XP doesn't let for modeling time, that is serious to make sure that a undertaking meets its proposed requisites. they've got additionally chanced on that normal modeling innovations that use the Unified Modeling Language (UML) frequently don't paintings with this system. during this leading edge ebook, software program improvement columnist Scott Ambler offers Agile Modeling (AM)-a process that he created for modeling XP tasks utilizing items of the UML and Rational's Unified strategy (RUP). Ambler basically explains AM, and indicates readers the right way to include AM, UML, and RUP into their improvement tasks with the aid of a variety of case stories built-in during the book.AM used to be created by means of the writer for modeling XP projects-an point missing within the unique XP designThe XP neighborhood and its author have embraced AM, which may still provide this publication powerful marketplace acceptanceCompanion website at positive aspects updates, hyperlinks to XP and AM assets, and ongoing case stories approximately agile modeling.

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Additional resources for Agile Modeling: Effective Practices for eXtreme Programming and the Unified Process

Sample text

Don’t over-model your system today; model based on today’s existing requirements and then refactor your system in the future when your requirements evolve. The implication is that you should keep your models as simple as you possibly can. This principle is the Occam’s Razor of modeling—when in doubt take the simplest approach possible. Will taking the simplest approach work every time? Likely not, but it will work the vast majority of the time. When it doesn’t work you will have learned something and will very likely have failed very early in your efforts.

Agile modelers create documentation that maximizes their investment in its creation and maintenance. Agile documentation is as simple as possible, as minimal as possible, has a distinct purpose that is directly related to the system being developed, and has a defined audience whose needs are understood. ” AM is not an attack on CASE tools. Agile modelers use tools that provide positive value by helping to make them more effective as developers. Furthermore, they always strive to use the simplest tool that gets the job done.

He points out that you can’t always predict what you’ll need in the future and you’re just as likely to be wrong about it as you are to be right. Therefore, why develop, test, and maintain that extra functionality, functionality that you definitely do not need right now and may never need? Wouldn’t it be better to focus on fulfilling the current needs of your project stakeholders today, thereby keeping them happy (always a good thing), and instead have the courage to assume that you can solve tomorrow’s problems tomorrow?

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