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Better reliability assessment and prediction through data clustering

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1 Author(s)
Tian, J. ; Dept. of Comput. Sci. & Eng., Southern Methodist Univ., Dallas, TX, USA

This paper presents a new approach to software reliability modeling by grouping data into clusters of homogeneous failure intensities. This series of data clusters associated with different time segments can be directly used as a piecewise linear model for reliability assessment and problem identification, which can produce meaningful results early in the testing process. The dual model fits traditional software reliability growth models (SRGMs) to these grouped data to provide long-term reliability assessments and predictions. These models were evaluated in the testing of two large software systems from IBM. Compared with existing SRGMs fitted to raw data, our models are generally more stable over time and produce more consistent and accurate reliability assessments and predictions.

Published in:

Software Engineering, IEEE Transactions on  (Volume:28 ,  Issue: 10 )

Date of Publication:

Oct 2002

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