Answer Posted / sonal.pagare
Waterfall Model vs V-Model
In Waterfall Model the tester role will take place only in
the test phase. In V-Model role will take place right from
the requirement phase itself.
Waterfall model is a fixed process that u can't make any
changes in the requirement or in any phase. In V-Model u can
make any change in the requirements.
Waterfall model is a continuous process. V-model is the
simultaneous process.
Waterfall model used only after the requirements are fixed.
V-model can be used for any type of requirement (Uncertain
requirement).
Any mistake in Requirement phase can't be recognized in
water fall model until near the end when customer gets to
see the product. This leads to huge cost of correctives in
terms of economy. So it is time consuming too. Here for each
and every phase of the software life cycle there is a review.
Reduce the probability of occurring a mistake or defect.
Hence saves the cost. It saves time.
Emphasizes the development cycle and ignores the testing
cycle. Testing merely get time as development phase takes
almost 98% of project time. Gives equal importance to the
testing phase as development.
Waterfall model stages:
1.User Requirement
2.System Requirement
3.Global Design
4.Detailed Design
5.Implementation
6.Testing
V model stages:
1.Component testing
2.Integration Testing
3.System Testing
4.Acceptance Testing
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