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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 any two graphical design notations used in procedural design
What is Parkinson's Law? Parkinson's Law states that work expands to fill the time available. The cost is fixed by available resources rather than by objective assessment.
It is possible to assign a local data object defined in a subroutine or function module to a field group. False.
What is cardinality in data modeling? Cardinality in data modeling, cardinality specifies how the number of occurrences of single object is related to the number of occurrences
What is regression testing? Regression testing is the re-execution of some subject texts that have previously been conducted to make sure that changes have not propagated unin
OO system testing is actually identical to its counterpart in the procedural environment.
Discuss in detail the design concepts. Abstraction Functional abstraction Data abstraction Control abstraction Information hiding Each unit in the s
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