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Define the method of Direct changeover
With this technique, old system is stopped and new system is used Straight away;
- This method can be disastrous if new system fails at any point
- Though, benefits are immediate and less time is wasted
- Costs are reduced (just one system in use so save on staff costs)
- Less likelihood of a malfunction as the new system would have been fully tested
Explain the Incremental Model Iterative and Incremental Models follow more or less the similar approach. Incremental Model is an intuitive approach to the waterfall model. Mult
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Differentiate between failures and faults. Failure:- Failure is the departure of external results of program operation from requirements. So failure is dynamic. Failure can
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REVERSE ENGINEERING :- It is a process of examining software with a view to understanding its design and specification. In this, source code and portable code are the input
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