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3. Product stability
customer request
developer estimates cost and schedule
customer agree
developing
customer change request
developer estimates the cost and schedule
customer agree
Time consuming and may never end!
Iterative development:
Developers give an initial version of the software from a vague functional description and work closely with the customer to understand, price, implement CRs, and rapidly produce new release.
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You can check CR status by the above chart or compute the ratio:
openCR / (openCR + ImplementedCR)
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