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Q. Explain Predictive validity?
Predictive validity: It is the potential of the model to predict future failure behaviour from present and past failure behaviour. This capability is important only when failure behaviour is changing. There are two universal ways of viewing predictive validity based on the two equivalent approaches to characterizing failure random process namely
1. The number of failure approach as well as
2. The failure time approach.
We can visually ensure the predictive validity by plotting the relative error against the normalised test time.
Regression testing It is the re-execution of some subset of tests that have already been conducted to make sure the changes that have not been propagated unintended side effect
Q. Consider a project for which the manpower requirement is 200 PY and the development time is 2 years. calculate the peak manning time. Ans Software Project cost K=200 PY
What is Vertical partitioning 1. The Control & work should be Modular Hierarchy for each distributed top-down in the program major program function structure 2. Higher prob
give the example of data dictionary
Q. Define Repeated inheritance and Encapsulation? Repeated inheritance If a class inherits in excess of once from the same class then it is referred to as repeated inherit
Parallel/audit testing is testing where the user reconciles the output of the latest system to the output of the present system to determine the new system performs the operations
What is Software configuration management? ans)Software Configuration Management (SCM) is the control and the recording of alter that are made to the software and documentation
What is a Real time system? Real time system is a software system in which the correct functionalities of the system are dependent upon results formed by the system and the tim
Software Engineering 1. What is the impact of "information era"? 2. Illustrate whether the linear sequential model of the software process is an accurate reflection of softw
What is the meaning of requirement engineering? Requirement engineering defined as the process of setting up the services that the customer requires from the system and the co
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