Assuring/Verifying Barriers II

Barriers are put in place to keep operations within specified parameters, or to mitigate if operations move outside of parameters and progress along a path toward an incident. This session seeks papers on the processes that are used to assure or verify that barriers which have been identified and put in place are robust, and will serve their purpose should they be called upon. Of particular interest are examples showing what has worked, difficulties encountered on the journey and how these have been overcome, and practical advice and learnings that can be shared.