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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.
Determine the technique - Parallel With this approach, old and new systems are run together for a time - If new system goes down for any reason, you still have old system
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