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Entries tagged with: Mission Time

Do You Really Know What You Know (When it Comes to Functional Safety)?

Do You Really Know What You Know (When it Comes to Functional Safety)?

You don’t’ really know what you know until you have to explain it (or teach it) to someone else. 

When I’m asked about some of the technical aspects of functional safety, I have to stop and ask myself “What Do I Know About This?”  I’m not the kind…

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How Does Mission Time Work with Proof Testing to Impact SIL Verification?

How Does Mission Time Work with Proof Testing to Impact SIL Verification?

I have been asked this question many times by various clients over the years.  This comes down to whether a perfect proof test is assumed or not.  Let us remember that Mission Time is defined as the amount of time we expect a set of SIF equipment to run until a…

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Why Proof Test Coverage Is So Important For A SIF to Achieve Its Target SIL?

Why Proof Test Coverage Is So Important For A SIF to Achieve Its Target SIL?

This is a question I often get asked when I’m teaching our FSE100 course on Functional Safety, when we discuss the purpose of Proof Testing and coverage.  It’s amazing how many end users assume perfect proof testing (i.e. 100% coverage), that is capable of finding, all the…

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