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copied!<p>Generally, though I can't speak for CMM, change requests and bugs are handled and considered differently because they typically refer to different pieces of your application lifecycle.</p> <p>A bug is a defect in your program implementation. For instance, if you design your program to be able to add two numbers and give the user the sum, a defect would be that it does not handle negative numbers correctly, and thus a bug.</p> <p>A change request is when you have a design defect. For instance, you might have specifically said that your program should not handle negative numbers. A change request is then filed in order to redesign and thus reimplement that part. The design defect might not be intentional, but could easily be because you just didn't consider that part when you originally designed your program, or new cases that didn't exist at the time when the original design was created have been invented or discovered since.</p> <p>In other words, a program might operate exactly as designed, but need to be changed. This is a change request.</p> <hr> <p>Typically, fixing a bug is considered a much cheaper action than executing a change request, as the bug was never intended to be part of your program. The design, however, was.</p> <p>And thus a different workflow might be necessary to handle the two different scenarios. For instance, you might have a different way of confirming and filing bugs than you have for change requests, which might require more work to lay out the consequences of the change.</p>

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