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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
Define about the erroneous data - Test data Abnormal/erroneous data - This is data outside the limits of validity/acceptability and must cause an error message to be g
What is Exception? Ans) An event that causes suspension of normal program implementation. Types contain addressing exception, operation exception, data exception, overflow excep
Q. What is Structure chart? A structure chart is a top-down modular design tool construct of squares representing the different modules in the system as well as lines that conn
Evolutionary prototyping Objective: The principal objective of this model is to deliver the working system to the end-user. Example-AI systems. Advantages
The act of attempting to verify the cause of the symptoms of malfunctions noticed by testing or by frenzied user complaints.
Function points: Function point calculates the functionality from the user point of view, that is, on the basis of what the user request and receives in return. Thus, it deals wit
Waterfall Model It is the oldest, simplest and most widely used process model. In waterfall model, every phase of the life cycle is finished before start of a new phase. It's
What do you understand by "Software Quality"? Quality software means, it's: - Free of bugs - Is easily maintainable - Within the budget - Meets requirements - De
How the CASE tools are classified? CASE tools can be classified by A. By function or use B. By user type(e.g. manager,tester),or C. By stage in software engineering pr
Q. Drive an expression for peak manning of a project using Nordes - Rayleigh equation . Ans Norden Rayleigh curve utilized to approximate software project . M(t) =Man powe
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