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Q. Discuss some of the problems that are faced during maintenance of software?
- Habitually another person or group of persons working over the years in isolation from each other writes the program.
- Habitually the program is changed by person who did not understand it clearly resulting in a deterioration of the program's original organization.
- There is a high staff turnover in the information technology industry. Because of these people who aren't the original authors maintain many systems. These persons mayn't have adequate knowledge about the system.
- Some problems merely become clearer when a system is in use. Several users know what they want but lack the ability to express it in a form understandable to programmers. This is mainly because of information gap.
Q Distinguish software faults and software failures? Ans: In case of a failure a software doesn't do what the users expect, a fault is a programming bug that may or mayn't act
What are the approaches of integration testing? The integration testing may be performed using two approaches. 1. The non-incremental testing. 2. Incremental testing.
Explain Spiral model The spiral model is separated into number of frame works. These frameworks are indicated by task regions. Usually there are six task regions. In spir
Mutation testing is type of software testing where our goal is to make mutant software fail, and therefore demonstrate the adequacy of our test case.
State the level 3 of KPAs Level 3 KPAs: 1) Organisation Process Focus (OPF): Organisations responsibility is fixed for software process activities which improve the ul
Write definition of ERD? Entity Relationship Diagram shows the graphical presentation of the object relationship pair. It is above all used in database applications.
What we called the problem arising in development of software Problems arising in the development of software is called as crisis. It includes problems arising in the process o
Q. What is Boundary Value Analysis? Boundary Value Analysis: It is extensively recognized that input values at the extreme ends of input domain cause more errors in system. M
Equivalence class: -It shows a set of valid or invalid states for input conditions. An input condition is either a particular numeric value, a range of values, a set of related val
How can we know about to divide numbers from total error from which half passed through error and half passed to amplified and how to generate defect efficiency?
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