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Why is maintenance of a software important?
The alteration of a software product, after delivery, to correct faults, to improve performance or other attributes, or to adapt the product to a changed environment.
Maintenance is a significant part of the software life-cycle. It is costly in manpower and resources, and one of the aims of software engineering is to decrease its cost.
The most significant problem during maintenance is the before correcting or modifying a program, the programmer must first understand it.
Define sandwich testing. Testing combines the ideas of both bottom-up and top-down testing by defining a certain target layer in the hierarchy of the module. The modules below
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What are the various testing activities? i. Test planning ii. Test case design iii. Data collection iv. Test execution v. Effective evaluation
You are to create a decision table to help you decide what to do for the day. If it is a weekday and it is not a holiday, then you go to work. However, if it is a weekday and it
Define query language? A query is a statement requesting the retrieval of information. The portion of DML that includes information retrieval is known as a query language.
Explain about the software testing strategies. A method approach to software testing. Verification and Validation. Verification refers to the set of activities tha
A testing technique using input values at, just below, and just above, the definite limits of an input domain; and with input values causing outputs to be at, just below, and just
Explain the persistent class maps to one relational table In most of cases, persistent class maps to one relational table (keeping aside inheritance issue, for the moment). In
What is meant by software change? Once software is ready to use, new requirement appear and existing requirements change as the business running that software changes parts of
Clear box testing and Ad-hoc Testing Clear box testing is white box testing which is a structural testing method. It needs understanding of the internal logic and flows of the
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