Category Archives: Continual Process Improvement

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The best start to Problem Solving – the Lean Approach

Read our latest blog from Steve Halpin of Etac Solutions  in relation to the Lean Solution and his personal experience and understanding the Lean approach I tell this account as a means of understanding the Lean approach. A number of years ago, I was involved in setting up a lo...

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Process Flow Charts are an essential tool in Root Cause Analysis

There are several tools used in Root Cause Analysis.  One of the most important is the Process Flow Chart. Problems arise when the process fails to performs its designed function.  The problem solving team must identify the causes of the problem, which really means determining ...

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Don’t confuse Mixture DOE with Factorial DOE and RSM

When undertaking formulation work don’t confuse Mixture DOE’s with Factorial/RSM DOE’s A potential error among DOE practitioners undertaking formulation work is to confuse Mixture DOE with Factorial/RSM DOE’s.  This can lead to unsatisfactory or misleading outcomes. Form...

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The Cp/Cpk Capability Indices are meaningless without Control Charts.

Many people who use the capability indices such as Cp/Cpk and Pp/Ppk when determining capability of their processes, are unaware that the indices Cp/Cpk are meaningless unless the data is analysed in parallel on control charts.  In other words, Cp/Cpk should not be quoted as a m...

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Don’t treat variables data as attribute data when using the Acceptance Sampling Standards

Many organizations use Acceptance Sampling as a method of quality control for both inspection of bought-in products, and for inspection of their own manufactured products, prior to despatch.  There are two types of data that arise in these circumstances, namely; variables data f...

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