Monthly Archives: October 2011

More on “all controls fail”

The “all controls fail” test case discussed in the previous post used a simple example from a simple SMS workshop.  It isn’t always that straightforward (but nor does it tend to be very complicated). Sometimes a workshop for a pipeline in a … Continue reading

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Validating SMS – “all controls fail”

A colleague recently sent me this message: … I experienced a lot of resistance within the workshop for the “All Controls Fail” scenario.  Several vocal members of the workshop were heard to say it was not relevant, overly conservative and … Continue reading

Posted in External interference, Risk assessment, Standards | 3 Comments

Penetration teeth and threat identification

(Getting very busy again, hence it’s been a while since my last post.  But I have a few things I want to write about as time permits.) After the previous post on penetration teeth I received some feedback from Phil … Continue reading

Posted in External interference, Pipeline design, Risk assessment | 1 Comment

Penetration Teeth

For the last few weeks my all posts here have been about pipeline incidents and organisational safety.  Time to get back to some technical stuff … Discussion with a client last week drew my attention to an ambiguity in the … Continue reading

Posted in External interference, Pipeline design | 1 Comment