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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. Important issues related to SRS? (a) System goals as well as requirements are different- Goal is a more general characteristics. For example Whole system must be designed in
Data Flow Diagrams (DFD) It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD i
Q. Explain the limitations of testing? Ans: Though testing is an significant part of system development and leads to a verified, valid and efficient system it as well faces s
Validation (Product Oriented) Validation is worried with whether the right functions of the program have been properly executed, and that this function will properly make the c
Advantage of microcomputer software packages: i) compilation and maintenance of reference and fact files; ii) compilation of current and retrospective bibliographies
What is the work product of software design process and who does this? A design model that encompasses architectural, component level, interface and their representations is t
This case study looks at the requirements for an information system to manage the organisation of an international academic conference. An academic conference consists of presenta
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The operational methods and processes used to achieve quality requirements.
Waterfall Model It is the oldest, simplest and most widely used process model. In waterfall model, every phase of the life cycle is finished before start of a new phase. It's
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