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What are the difference between Waterfall model and V-Model?

What are the difference between Waterfall model and V-Model?

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Hi
Waterfall model is simple and traditional S/w. Development model where Testing comes in last phase
while V model represent verification and validation .
Hitesh Shah
1. Waterfall Model the tester role will take place only in the test phase but in V-Model role will take place in the requirement phase itself

2.Waterfall madel is a fixed process u can't make any changes in the requirement or in any phase.but in V-Model u can make any changes in the requirements

3.V-model is the simultaneous process but it is not in case of water fall model4.waterfall model used only the requirements are fixed but V-model can be used for the any type of requirement(Uncertain requirement)
Great explanation.

Hi,

We can say waterfall model is mostly we use in product based application while for project based application V model is mostly we use. Also company policy also matter project wise.

Thanks
Hi,
In short, in waterfall model, testing is done at the last phase of a SDLC while in V-Model, testing (V : V | Validation : Verification) takes part in each & every phase of SDLC.
Waterfall model

It is traditional SDLC and it is having the following stages

1. Requirement
2. Analysis
3. Design
4. Coding
5. Testing
6. Implementation
7. Maintanance

In this model if one stage is completed then only will go to the next. So Testing will come after development of entire system or application. So due to this if any change request/requirement comes in between any stage then it will be very tedious since agin starts with the first one. So it is very time consuming and costly.

V-Model

This is same like "Waterfall model" but in this model "Testing" will come and each and every stage so that in earlier stage itself we can find out any flaws or if any changes comes in any stage we will rectify immediately. So it is very cost effective.

I think i haven given mostly correct answer. if any changes guys let me know.


Regards
Chitra.C
Thanks for the prompt replies...

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