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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.
Explain the Throw away prototype In this technique, prototype is discarded once its purpose is fulfilled and final system is built from scratch. Prototype is built quickly t
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Write down the concept of Functional independence. a. Functional independence is gained by developing modules with "single minded" function and an "aversion" to extreme intera
Q. Discuss the problems faced during software maintenance? The most significant problem during maintenance is that before correcting or else modifying a program the programmer
Scenario A scenario is a sequence of events that happen in a particular implementation of the system. A scenario can be defined textually by enumerating the sequence of events
1. Answer the following questions for the method search() below: public static int search (List list, Object element) // Effects: if list or element is null throw NullPointerExcept
Explain Quick-fix Model Quick-fix Model : This is the easiest model used for the maintenance of the software. In this model changes at the code level are made as early as poss
Explain Boundary value? (1)A data value that corresponds to a input, internal, or output value specified for a system or component. (2) A value which lies at, or just inside
what is software decomposition? what are its techniques?
1. "Variable trace" is a (computer) record of the names and the values of variables accessed and/or changed during the implementation of a computer program. 2. "Value trace" is
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