Lognormal distribution and maintainability in support systems research

R. L. Bovaird and H. L. Zagor

Naval Research Logistics Quarterly, 1961, vol. 8, issue 4, 343-356

Abstract: This article presents a method for predicting the downtime distribution for a new complex electronic equipment. A theoretical discussion is given which indicates that the downtime distribution for such an equipment can be represented by a lognormal function. Experimental data are shown which establish that the two‐parameter lognormal distribution function adequately describes the downtimes of a diverse group of electronic equipments. It is concluded that this analytical expression for the downtime distribution of complex electronic equipments provides the basis for a quantitative and scientific approach to the measurement and prediction of maintainability. This approach takes account of equipment maintenance characteristics and maintenance personnel capabilities.

Date: 1961
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https://doi.org/10.1002/nav.3800080403

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Persistent link: https://EconPapers.repec.org/RePEc:wly:navlog:v:8:y:1961:i:4:p:343-356

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