ENBIS-16 in Sheffield

11 – 15 September 2016; Sheffield Abstract submission: 20 March – 4 July 2016

AQL Tables and Lean Thinking

14 September 2016, 10:10 – 10:30


Submitted by
Jonathan Smyth-Renshaw
Jonathan Smyth-Renshaw (Jonathan Smyth-Renshaw & Associates Ltd)
The use of AQL tables for inspection decisions is well known and understood. The principle of Deming's k-p method, in which 0% or 100% inspection are the two outcomes, based on cost and defective rates. The principles of Lean, as developed, by Toyota are used widely across business. The principles of Lean encourage small batch production to minimize waste. I believe this makes AQL tables redundant, and 100% inspection widespread in Lean processes. However, is inspection value added or not in a Lean process? Can the Deming k-p method be adapted to provide a decision rule for inspection or no inspection based on the selling price of the final product/service? I will discuss these issues and propose a framework for inspection in Lean processes.
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