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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
Explain about the software testing strategies. A method approach to software testing. Verification and Validation. Verification refers to the set of activities tha
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Explain the reuse maintenance model with the help of a diagram. Reuse maintenance model: This model is based on the principal that maintenance could be viewed as an activity i
Data validity is the reasonableness and correctness of data.
INFORMATION STORAGE AND RETRIEVAL SOFTWARE: IBM (International Business Machines Corporation) was one of the earliest to invest money to develop software packages intended fo
What are the characteristics of software measurement? Measured property Object of measurement Source of measure Purpose measurement Context of measurement.
Write down any four application of a stack. (i) Conversion of infix to postfix form (ii) Reversing of a line. (iii) Removal of recursion (iv) Evaluating post fix expression
Describe Operational Testing? Ans) Testing done by the end user on software in its normal operating environment.
Static testing and dynamic testing Static testing is checking the application without actually running the application while dynamic testing checks the application by running i
Bottom-up integration This testing starts construction and testing with the components at the lowest levels in the program structure.
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