Tag Archives: Weibull

The reliability data Catch 22

Posted on November 26, 2013 by Murray Wiseman

Ever wonder why poor historical work order data in the CMMS has been tolerated all these decades? One reason is that the fix is a human one. And human behavior is difficult to change. We tend to avoid difficult human … Continue reading →

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Real meaning of the six RCM curves

Posted on April 20, 2011 by Murray Wiseman

You may be wondering about the famous “RCM curves” shown below in Figure 1. They are the Age-Reliability behavior curves which graph the Conditional Probability of failure against age. A common question is the following. “For the 139 items covered … Continue reading →

Posted in Data and samples, RCM, Reliability Analysis, Theory and definitions | Tagged , , , | 1 Comment

EXAKT vs Weibull

Posted on March 6, 2011 by Murray Wiseman

The difference is that Weibull is a reliability analysis procedure in two dimensions, namely Reliability versus Age. Its main purpose is to discover the relationship (equation) relating reliability and age. EXAKT is a reliability analysis software that relates several dimensions, … Continue reading →

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