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Which of the following software development methods includes four sub-stages (based on the Deming Plan-Do-Check-Act model) in each phase of the traditional waterfall model?
Rapid Application Development (RAD)
Cleanroom
Modified Prototype Model (MDM)
Spiral method
In the Spiral method, each phase of the waterfall model includes four PDCA sub-stages. After the Check sub-stage is completed, the costs and schedules are revised, and decision is made to continue or cancel the project.
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