Question { Protech, 18589 }

please answer the difference between QA & QC with practical
example

Answer

QA: QA involves monitoring and improving entire SDLC
process,making sure that any agreed upon standards and
procedures are followed and problems are found and dealt
with. It is oriented to "Prevention".

QC: QC is the process of Inspections, walkthroughs and
Reviews.

Question { IBM, 80791 }

What is diffrence between iterative model and waterfall
model?Explain

What is the diffrence between iterative model and prototype
model?Explain

Answer

Waterfall model: It includes all phases of SDLC.The
drawback is once the requirements request made
freezed,changes can't be done during any phase.

Iterative model: We can change requiremnts at any phase,
but the problem is all the phases of SDLC can take place
again.

Prototype model: We can change requirements before design
and coding can proceed.In this model, prototype is
developed based on the currently known
requirements.Development of prototype undergoes design,
coding, testing, which give client an actual feel of the
system. Prototype is a model which looks exactly like SDLC