rough or actualFor routine investigations, "rough" root causes may be determined if the QA SysOp is very familiar with the organizational system and has extensive practice at conducting complete root cause analyses.
Actual root causes refer to those that have been revealed as the result of a formal root cause analysis.
Eindhoven Classification Model (ECM)The Eindhoven Classification Model (ECM), which was originally developed by Tjerk van der Schaaf in the Netherlands, was selected as the MERS-TM causal coding scheme. It was first developed for use in the petrochemical industry but Dr. van der Schaaf and MERS collaborated to modify it for the medical domain.
Van der Schaafs work is based on the two basic categories of error: active or human error and latent error.
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