Using the Quality Gateway


In medieval times, castles and fortified towns had gateways designed specifically to keep invaders and unwanted travelers out. The gateways usually sported a portcullis and were heavily defended by gatekeepers, people charged with the protection of the inner sanctum. The Quality Gateway we describe here has the same roleto defend the specification against unwelcome requirements.

To pass through the Quality Gateway and be included in the requirements specification (remember the specification does not have to be a formal, written document), a requirement must pass a number of tests. These tests ensure that the requirements are complete and accurate, and do not cause problems by being unsuitable for the design and implementation stages later in the project. See Figure 11.2.

Figure 11.2.

The Quality Gateway tests each requirement for correctness and suitability. Accepted requirements are added to the specification. Rejected requirements are returned to their originator.


In the next part of this chapter, we discuss each of the requirements tests. As we do, keep in mind that it takes longer to describe the tests than it does to perform them.




Mastering the Requirements Process
Mastering the Requirements Process (2nd Edition)
ISBN: 0321419499
EAN: 2147483647
Year: 2006
Pages: 371

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