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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.
Q. Why we use Coverage analyzers? Coverage analyzers (execution verifiers) A coverage analyzer is the most common and important tool for testing. It is often relatively simpl
Q. How does the risk factor affect the spiral model of software development? Ans: Risk Analysis phase is the most vital part of Spiral Model. In this phase all probable (and
Q. When we need Re-Engineer? When the system changes are mainly confined to part of the system then re-engineer that part. When hardware or else software support become
Describe the effect of defining a prototype on the overall cost of the software project? The prototyping model: In this model, a prototype (an previous approximation of a fin
Advantage of software package: Advantages accrue from this situation. Some of these are mentioned below: i) An efficient software package requires at least 4 to 5 man yea
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QUESTION (a) Explain the meaning of the three-tier architecture (b) An Internet banking system can be said to be based on a three-tier architecture. Illustrate this with a d
What is meant by System Requirements Set out the system constraints and services in well explained. Serves as a contract among the system buyer & the system developer.
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