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Answer Posted / aparna
SDLC models are
1.Linear Sequential model or Waterfall model
2.Prototype model
3.Spiral model
4.V model--same like waterfall model
Above models are used in some cases like
1.when small chnages are required to be done then waterfall
model is useful
2.When project manager can give immediate feedback then
prototype model is fine
3.when there are periodical increments then spiral model is
correct
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