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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.
What is DFD? Data Flow Diagram depicts the information flow and the transforms that are applied on the data as it moves from input to output.
An application which is under development. How would you develop a test case for it? When application is under development, Business Requirement Document is used as primary doc
Q. Define capability. What are the quantities that determine the degree of capability of a software reliability model? Ans: Capability demotes to the ability of the model to
Q. Compare the basic COCOMO model with the detailed COCOMO model. Ans. COCOMO contains of a hierarchy of three increasingly detailed and accurate forms. Basic COCOMO i
solve inequalities and graph the solutions: [z/25-1]
What is Dynamic and static metrics? Dynamic metrics are closely related to software quality attributes It is relatively easy to measure the response time of a system (per
Q. What do you mean by Polymorphism? Polymorphism:- Polymorphism includes the ability to use the same message to objects of different classes and have them behave differently.
Q. What are the Debugging programs? Debugging programs:-A program which runs simultaneously with the program under test and provides commands to examine memory and registers st
Q. Explain Span and average span size of a program? Span dimension indicates the number of statements that pass between successive uses of a variable. For illustration in the f
What tasks do checkpoints perform in QTP? Checkpoints in QTP are used to verify information which is expected to be displayed when running test. Following are 8 types of availa
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