Bayesian Network Based XP Process Modelling

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Executive Summary

A Bayesian Network based mathematical model has been used for modeling Extreme Programming software development process. The model is capable of predicting the expected finish time and the expected defect rate for each XP release. Therefore, it can be used to determine the success/failure of any XP Project. The model takes into account the effect of three XP practices, namely: Pair Programming, Test Driven Development and Onsite Customer practices. The model's predictions were validated against two case studies. Results show the precision of the model especially in predicting the project finish time.

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