- by Iwan van Beurden, CFSE
- Wednesday, October 23, 2013
- Functional Safety
My Proof Test Coverage is Better Than Yours!
Oh Really?
It must have been the week of the Proof Test Coverage (PTC) questions. In the latest marketing wars between vendors, the Proof Test Coverage has been used as a weapon. Who would have ever thought about using Proof Test Coverage to show that product A…
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- by Dr. William Goble, CFSE
- Thursday, May 02, 2013
- Functional Safety
Setting the Pace
Going back in time to the turn of the century (remember 2000?), the amount and quality of failure data threatened to doom the whole probabilistic analysis approach. I recall a letter in IEEE Spectrum magazine from Patrick D. O’Conner, a well known reliability engineering author, who expressed the…
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- by Iwan van Beurden, CFSE
- Wednesday, October 16, 2013
- Functional Safety
Why Does My Proof Test Coverage Change with Partial Stroke Testing?
I have run into this question a couple of times now and though the answer is somewhat straightforward, some customers have trouble wrapping their head around this without a clear example. So here we go…
First of all we need to keep in mind that the objective of a…
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