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Chapter 37. Development Methodologies > Why Use a Development Methodology?

Why Use a Development Methodology?

If you've been building Web applications for a while, you've probably run into this situation: You're asked to work on something that you originally wrote many months ago. Perhaps you're asked to change the way a complex set of forms works. As you pour over your old code, you're bewildered and having a bit of difficulty figuring out which pages call which and why you did certain things the way you did. Sound familiar?

Of course, this can happen to the most experienced developer. You should recognize that when you spend n hours developing an application, you will probably spend 2n or 3n hours maintaining the application over time. The predicament just described can be largely avoided—or at least significantly mitigated—by employing a well-defined and well-thought-out development methodology.


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