Defect prevention rather than defect removal is characteristic of which of the following software development methodology?

A.
Computer Aided Software Engineering (CASE)

B.
Spiral

C.
Waterfall

D.
Cleanroom

Explanation:
D: In cleanroom software development methodology, the goal is to write code correctly the fi rst time, rather than trying to fi nd the problems once they are there. Essentially, it focuses on defect prevention rather than defect removal. Th e waterfall methodology is extremely structured and its key distinguishing characteristic is that each phase (stage) must be completed before moving on to the next, in order to prevent ad hoc scope creep. A distinguishing feature of the spiral model is that in each phase of the waterfall there are four substages, based on the common Deming PDCA (Plan-Do-Check-Act) model; in particular, a risk assessment review (Check). CASE is the technique of using computers and computer utilities to help with the systematic analysis, design, development, implementation, and maintenance of software. Page 188.