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


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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