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CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Information Systems

A company secretary is told that an organisation's new payroll system will be built by first completing requirement analysis, then design, coding, testing and deployment, with each phase starting only after the previous one is signed off and no return to earlier phases planned. Which Systems Development Life Cycle (SDLC) approach does this describe?

This is the Waterfall model. It is a linear, sequential SDLC approach in which each phase, from requirements to deployment, is completed and approved before the next starts, with no planned return to earlier stages, unlike iterative models such as Agile, spiral or prototyping.

  1. AWaterfall modelCorrect
  2. BAgile model
  3. CSpiral model
  4. DRapid prototyping model

Explanation

The Waterfall model is a linear sequential approach in which each phase is completed and signed off before the next begins, with little provision for revisiting earlier phases. Agile and prototyping rely on iterations and feedback, and the spiral model repeats cycles driven by risk analysis.

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