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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.
User and System documentation with examples. User documentation having descriptions of the functions of a system without reference to how these functions are executed. Examples
Q. Define Object and class associations? Object/class associations:- Objects/classes interact with each other. Multiplicity defines how many instances of one object/class can
What is cyclomatic complexity? Cyclomatic complexity is given by McCabe. The general formula to compute cyclomatic complexity is M=V (G)=E - N + 2P Where E-Number of e
What is Path Coverage Testing? Ans) A test process satisfying coverage criteria that every logical path by the program is tested. Paths through the program often are grouped int
Q. What are the advantages of using testing tools? Ans: The merits of testing tools are They improve the productivity and quality of software development. Help in
What does the insert statement in extract datasets do? It describes the fields of a field group.
Throw-away prototyping Objective: The principal objective of this model is to validate or to derive the system needs. It is developed to decrease requirement risks.
Q. Write short notes on Quick-fix Model? Quick-fix Model: This is the simplest model utilized for the maintenance of the software. In this model modification at the code level
What is Test phase? Ans) The time period in the software life cycle in which the parts of a software product are evaluated and integrated, and the software product is evaluated
Objectives of Requirement Analysis
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