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saved bymikeem em on 2007-12-19

  • The waterfall model the process goes to the next step after
    completion of the previous step as first requirement then
    design then coding then implementation then maintenance but
    here is no end user feedback taken to consideration any
    change in SRS will result to start work fro first step and
    goes step by step again.
    But in case of Spiral model for each and every step there
    is testing for that step carry on simultaneously after
    finishing that step so that it will easy to recover any
    error and fix it there. In this model we don?t have to
    start work from beginning


  • # 2 
    In the water fall model the process flows from top to 
    bottom like a flow of water . But any new changes can not 
    be incorporated in the middle of the project development.

    Whereas the spiral model is best suted for projects 
    associated with risks.
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