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Question: Describe waterfall software development life cycle model.
Answer:

Waterfall is a sequential and non-iterative SDLC model which describes the flowing of phases downwards one by one. The process does not start a phase unless the previous phase is completed once and for all completely. The waterfall model consists of the following phases:

    • Requirements gathering
    • Design
    • Implementation
    • Testing
    • Maintenance 

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