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Development Model (1) (Waterfall (When to Use (Clear objectives and…

- - - - Traditional process
      - There is no process to move backward
      - Next phase only begin when previous is completed
  - - - Set clear expectation in term of cost, time and resources
      - Intensive documents is useful for maintenance support
      - Progress is easily measured
    - - Inflexible due to no backward process
      - Customer cannot see the progress or product demo until testing phase => problems is only discovered at testing phase and creating CR
      - Document is not easy to keep up to date => Not useful for maintenance anymore