Likelihood Function of a Debugging Model for Computer Software Reliability

A simple model for software reliability growth, originally suggested by Jelinski & Moranda, has been widely used but suffers from difficulties associated with parameter estimation. We show that a major reason for obtaining nonsensical results from the model is its application to data sets which...

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Veröffentlicht in:IEEE transactions on reliability Jg. R-30; H. 2; S. 145 - 148
Hauptverfasser: Littlewood, Bev, Verrall, John L.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: IEEE 01.06.1981
Schlagworte:
Application software
Battery powered vehicles
Computer errors
Debugging
Debugging modeling
Likelihood function
Maximum likelihood estimation
Parameter estimation
Reliability engineering
Software reliability
Statistics
ISSN:0018-9529
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Zusammenfassung:A simple model for software reliability growth, originally suggested by Jelinski & Moranda, has been widely used but suffers from difficulties associated with parameter estimation. We show that a major reason for obtaining nonsensical results from the model is its application to data sets which exhibit decreasing reliability. We present a simple, necessary and sufficient condition for the maximum likelihood estimates to be finite and suggest that this condition be tested prior to using the model.
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ISSN:0018-9529
DOI:10.1109/TR.1981.5221009