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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.
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Q. Assume that a program will experience 200 failures in infinite time. It has now experienced 100. The initial failure intensity was 20 failures/CPU hr. (i) Determine the cur
I want class diagram for real estate property portal
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Determine the level 0 and level 1 of DFD External entities provide input data for processing. During processing, some intermediate data is generated. After final processing, fi
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