SQA Engineer Interview Question:

How do an incremental process model and certification work together to produce high quality software? In your own words, describe the intent of certification in the clean room software engineering context?

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Cleanroom development uses an iterative approach, in which the product is developed in increments that gradually
increase the implemented functionality. The quality of each increment is measured against pre-established standards to
verify that the development process is proceeding acceptably. A failure to meet quality standards results in
the cessation of testing for the current increment, and a return to the design phase.
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