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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.
Depth of conditional nesting This is a measure of the depth of nesting of if-statements in a program. Deeply nested if statements are hard to understand and are potentially er
Evolutionary prototyping: Evolutionary Prototyping (also called as breadboard prototyping) is quite dissimilar from Throwaway Prototyping. The main goal when using Evolutionary Pr
What does Level0 DFD represent? Level0 DFD is known as 'fundamental system model' or 'context model'. In the context model the entire software system is shown by a single bubb
What is Code Optimization and Code Generation?
true/false small errors in syntax or spelling of a line of code will not affect the results
What are the benefits of prototyping? i. Prototype uses as a basis for deriving system specification. ii. Design quality can be better. iii. System can be handled efficie
What is a boundary value analysis? A boundary value analysis is a testing method in which the elements at the edge of the domain are selected and tested. It is a test case desi
Q. A supermarket requires to develop software to encourage regular customers. For this the customer requires to supply his name address telephone number and driving license number.
What is Code Coverage and Code Inspection - This is an analysis method which verifies which parts of the software have already been covered by the test case suite and which are
Functions that dynamic testing tools supports: 1: Input setting: selecting of the test data that the test object reads when called. 2: Stub processing : handling output
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