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Write about software change methods.
The software change strategies that could be applied individually or together are: Software maintenance - The changes are made in the software due to requirements. Architectural transformation - It is the procedure of changing one architecture into another form. Software re-engineering - New quality can be added to existing system and then the system is refined for better use of it in future.
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
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Explain any ten case tools
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Describe Data dictionary ?
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