I have just chaired a Masterclass which was focussed around scoping process improvement in manufacturing processes. It was apparent that a narrow application of the seven measures of QCD could lead the wrong areas being concentrated on for an couple of reasons:
1. The process industries have a very important measure which is Yield which could be of a much greater opportunity than OEE. A process could operate at 100% OEE with a poor yield and be losing a great deal of money!
2. The seven (or eight including yield) measures do not tell the full story. Understanding the financial performance and the funding sources for a business will give further clues as to how to approach an improvement programme.
I think we have to be careful in the field of Lean that we do not forget the bigger picture of where our efforts contribute to the business performance.
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