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Q. Why is maintenance of a software important? Discuss some of the problems that are faced during maintenance of software.
Ans: The modification of a software product subsequent to delivery to correct faults to improve performance or other attributes or to adapt the product to a changed environment.
Maintenance is a vital part of the software life-cycle. It is expensive in manpower as well as resources and one of the aims of software engineering is to reduce its cost.
The most vital problem during maintenance is the before correcting or modifying a program and the programmer must first understand it.
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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What is stepwise refinement? Stepwise Refinement:- Stepwise Refinement is a top-down design method originally proposed by Niklaus Wirth. A program is developed by successively
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