Waterfall Model - Features

  • Each phase is defined in terms of output during the phase, not only by the activities occurring.

  • A tangible output is the only criterion of progress.

  • A phase product represents a natural milestone, a change in emphasis point, and is used as the basis for the next phase.

  • Products of next phase can be formally verified against the previous as part of quality assessment.

  • The process is plan-driven

    • Each step and its components must be planned and scheduled before work begins