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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 to fall back on so a failure wouldn't be disastrous
- It's possible to gradually train staff/time to get used to new system
- More expensive than direct since need extra staff to run both systems
- More time consuming as both systems need to be run and evaluated
Why software change occurs? Software change occurs because of the following reasons. New requirements appear when the software is used. The business atmosphere changes. E
What does the insert statement in extract datasets do? It describes the fields of a field group.
What are the three activities of risk assessment? The three activities are identifying, examining and giving priorities . Risks can be identified by a check list or looking at
Write a report that explains the agile principles for rapid software development, and recommend and justify an appropriate method for adoption.
What are the principle stages of VORD method? Viewpoint identification: Identify the services provided to each point of view Viewpoint structuring: Sorting related viewpoint
Q. What is Constructive Cost Model? COCOMO model denotes Constructive Cost Model. It is an empirical model basis on project experience. It is well-documented and independent mo
Q. Explain about non-functional requirement for a software ? Ans) Nonfunctional requirements are the basic characteristics of the system which will not be expressed as function
What does Verification represent? Verification shows the set of activities that are carried out to confirm that the software correctly executes the specific functionality.
What is meant by software change? Once software is ready to use, new requirement appear and existing requirements change as the business running that software changes parts of
What is meant by Data dictionary? The Data dictionary is an organized listing of all data constituents that are related to the system, with precise, accurate definitions so tha
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