Drawbacks of classic life cycle model

Write down all the drawbacks of classic life cycle model. Briefly illustrate it.

E

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The drawbacks of classic life cycle model are as follows:

a) Real projects seldom follow the sequential flow. Iteration always takes place and generates problem.

b) Difficult for the customer to illustrate all the requirements.

c) The working version of program is not available. Therefore the customer should have patience.

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