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Pierre CHAPOUILLE: Engineer from the Grenoble Electrotechnical Institute - Head of the Reliability and Process Qualification Division at CompagnieCII Honeywell Bull - Lecturer in Reliability at the Conservatoire National des Arts et Métiers (France)
INTRODUCTION
Reliability is concerned with everything that needs to be done to ensure that a product operates without failure, or with a frequency of failure low enough to be acceptable for its intended use. Its conservation concerns maintainability, which is concerned with what needs to be done to bring a product back to conditions as close as possible to those anticipated at the start of its operation.
The aim of reliability and maintainability is to guarantee the customer intended use at minimum total cost for the specified period, under precise maintenance and repair conditions.
Readers are referred to the following articles:
Reliability
[E 1 420] Maintainability of electronic equipment
[E 1 430]
in the treatise Electronics ;
in Measurement and Control ;
and, for certain numerical data required for the examples given in this article, to :
Probabilities
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