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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.
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
Big-Bang Testing : In this all the modules after unit testing are joint and tested in one go. The problem with this type of testing is debugging of errors.
Q. What is Unit testing explain ? Unit testing: Unit testing is undertaken after a module has been coded and successfully reviewed. Unit testing (or module testing) is the te
Q. Show the Advantages of incremental Model? As product is to be conveying in parts total cost of the project is distributed. Limited number of persons is able to be pu
Open box testing is similar as white box testing. It's a testing approach that consider the application's program structure, and derives test cases from the application's program l
Q. How the Class concept used in Software Engineering? Class:- A class encapsulates data and procedural abstractions required to describe the content and behavior of some real
ZeroJet, a new low cost airline, wants a brand new web-based system to allow people to book seats for flights on-line. They want an automated check in system which has no staff.
what is constructor overloading
Draw a memory map for a system with a memory capacity of 256MB. Each memory location in the system is 8 bits. Assume the system has one 4 MB memory block used as ROM residing at th
Problem 1 Explain change control? Write down the steps followed for change control Problem 2 Explain the concept of Baselines with reference to software configuration m
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