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Define the method of Direct changeover
With this technique, old system is stopped and new system is used Straight away;
- This method can be disastrous if new system fails at any point
- Though, benefits are immediate and less time is wasted
- Costs are reduced (just one system in use so save on staff costs)
- Less likelihood of a malfunction as the new system would have been fully tested
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Explain CASE ?
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A computer program is "user friendly", when it is designed with simple of use, as one of the primary purposes of its design.
A measure of the severity and probability of undesired effects. Often taken as the easy product of probability and consequence.
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Go to Blackboard, and print the project scenariolocated under the Project folder. Using Visio, draw a Physical DFD ofall three business processes described in theproject scenario.
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What is the advantage of using prototype software development model instead of waterfall model?
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