[ Título | Autores | Resumo | Palavras Chave ]

Título

Software Reliability Measurement Experiences conducted in Alcatel Portugal

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Autores

Rui Lourenço, Alcatel Portugal

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Resumo

Software Reliability measurement is essential for examining the degree of quality or reliability of a developed software system. This paper describes the experiments conducted at Alcatel Cascais, concerning the use of Software Reliability models. The results are general and can be used to monitor software reliability growth in order to attain a certain quality within schedule. A method based on the analysis of the trend exhibited by the data collected is used to improve the predictions. The results show that:

It is difficult for the models to reproduce the observed failure data when changes in trend do not follow the models assumptions.

The Laplace trend test is a major tool for guiding the partitioning of failure data according to the assumptions of models reliability growth.

Prediction yields good results over a time period of a few months, showing that reliability modeling is a major tool for test/maintenance planning and follow up.

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Palavras Chave

Software-reliability modeling, trend analysis, reliability prediction, real application

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