Therefore, I am unable to predict the kind and number of errors, to quantify the Sigma value and to economically and efficiently design actions, avoiding all these errors. I consider it to be impossible to define each potential human error. We explain Six Sigma using a logistics context. It is an integral part of a Six Sigma initiative, but can also be implemented as a standalone quality improvement procedure or as part of other process improvement initiatives such as lean. Six Sigma has been interpreted over time within quality theory as a metric, methodology or a management system. You will find at least one human error in literally every reaction chain leading to a defect. DMAIC: The define, measure, analyze, improve, and control process is a data-driven quality strategy used to improve processes.I consider Basic Risk Factors (permanent and everywhere lurking Management failures) to be the real Root Causes (that thus have to be eliminated).I apply the thorough analysis of a statistically representative sample of defects rather in order to find the permanent failures provoking defects of other kinds at other spots. The Six Sigma management method includes measured financial results, uses additional, more advanced data analysis tools, and uses project management methodology. However, Sporadic Defects don’t repeat anyway (by definition). If I could avoid these faults, I would just prevent the same defect to occur again. This is why I am less interested in the individual Active Faults and errors that have triggered an individual defect.I expect nearly all defects to be triggered by several simultaneous chain reactions.I don’t presume Chronic defects to dominate (but rather sporadic incidents).
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