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Metrics and Models in Software Quality Engineering, Second Edition by Stephen H. Kan

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Chapter 7. The Rayleigh Model

Having discussed defect removal effectiveness and the phase-based defect removal model, this chapter discusses a formal model of software reliability: the Rayleigh model. The Rayleigh model is a parametric model in the sense that it is based on a specific statistical distribution. When the parameters of the statistical distribution are estimated based on the data from a software project, projections about the defect rate of the project can be made based on the model.

Reliability Models

Software reliability models are used to assess a software product’s reliability or to estimate the number of latent defects when it is available to the customers. Such an estimate is important for two reasons: (1) as an objective statement ...

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