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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. What is the use of a data flow diagram? Explain the important concepts of data flow diagram. Ans. A data flow diagram is utilized to show the functional view of an applica
Explain the role and functions of a Systems Analyst in the overall project development.
What are the advantages and disadvantages of size measure? Advantages: Artefact of software development which is simply counted. Many existing methods use LOC as a key input. A
Enterprise software platforms are designed to simplify complex enterprise problems for the development, deployment, and maintenance of multi-tier enterprise solutions. In
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
What can be main reasons for a bug not being to reproduce? What must be done if such a bug is found? A bug can't be reproduced for below reasons: 1. Low memory. 2. Things
Q. Explain the concept of bottom-up design? Bottom up design: This approach make possible a style of design where we decide how to combine these modules to provide larger ones
Recovery/error testing is testing how well a system recovers from crashes, hardware failures, or other catastrophic problems.
Q Define the failure intensity of the Basic model? Ans: The failure intensity of the Basic model is λ (μ) = λ 0 [1 - μ / v 0 ] Where λ 0 is the initial failure inten
Q. What is Equivalence class testing? Equivalence class testing is based on the partitioning the input domain of a program into a number of equivalence classes so that the test
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