Answer / n@n!

hi Amit Verma

W-model is nor water fall model
please check it out.

Answer / pradeep sharma

The V&V model explains the activities that are carried out
during verification and validation. Basically, verification
methods are static, i.e. the code is not executed.
Verification methods are reviews, inspections, code
walkthroughs, etc...
Validation activities include executing the code, in unit
testing, integration testing, system testing, acceptance
testing, etc...

Good luck!

Answer / n@n!

plz go to this site it is usefull to u

http://www.zimbio.com/Software+Testing/articles/8/v+model+to
+w+model

Answer / amit verma

Waterfall is a Linear Model in which after completion of
each phase next phase will come in linear order like
Requirement,Design,Analysis,Development,Testing n so on.

Main drawback in this,after completion of one phase next
phase will start.So,cause of the issue will detect later
then cost will increase.That is the main prob. with W Model.

While V Model is a Non Linear model in which phases are not
in linear order.In V Model on the left hand side there is
Verfication phase and on right hand side there is
validation.Both activites of Verification and Validation
phases are goings on simultaneusly.

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