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Answer Posted / @mit
Main diffrence in b/w waterfall & V model are as follows:-
-In Waterfall Model,output of any phase is the Input of
other phase like after completion of Requirement phase next
phase will come i.e Design and so on which is main drawback
of waterfall model while in V Model both phases
(Verification and validation) are on going activities.
-In waterfall model,any error occured in any phase can be
traced or rectified laterly while in V model error can be
traced on same phase.
-In waterfall model,cost of fixing and finding the bug is
very huge as error will finds in later stage even TESTING
will done only at once as per as schedule while in V model
after completion of any phase Testting comes in picture and
cost of finding nad rectify the bug is low.
Now a days, V Model is adopt by various companies due to
its benefits over Waterfall Model.
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