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What is Waterfall Model?


Waterfall Model or SDLC, introduced in 1970 by Winston Royce, is a sequential model divided into different phases of software development activity. Each phase is designed for performing specific activity during SDLC phase

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When to use SDLC Waterfall Model

Waterfall model can be used when

  • Requirements are not changing frequently
  • Application is not complicated and big
  • Project is short
  • Requirement is clear
  • Environment is stable
  • Technology and tools used are not dynamic and is stable
  • Resources are available and trained
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