The Gurus >>more

The Seven Tools of Quality >>more

The Wastes >>more

The New Tools >>more

The System >>more

Six Sigma >>more

6 Honest Working Men Rudyard Kipling s Six Honest Serving Men remains, some 100 y ears after it was first written, one of the most useful problem analysis tools. The original verse is, I knew six honest serving men, they taught me all I knew; their names are why and what and when, and where and how and who . Such a simple little verse; so much wisdom so often ignored! >>more

Precontrol Statistical Process Control (SPC) is more suited to longer production runs where a large number of samples can be taken over time. Unfortunately this is not the case with many JIT systems. Also, particularly with JIT, it is important to verify as quickly as possible if a changeover has been undertaken correctly and the process is capable of producing good quality parts. One possibility is to use Precontrol, originally developed by consultants Rath and Strong. >>more

Short Run SPC Traditionally SPC has been around for 60 years or more, but really relies on longer production runs on which samples of say minimum 20 can be based. This assumption does not fit easily with Lean thinking or JIT, where short runs are the order of the day. Although it is possible to maintain separate control charts for each product group using a process, short run SPC is far more efficient. A short run is a situation where there is limited data available to calculate control limits. (Traditionally SPC is dealt with in the companion publication The Quality 75, as are the other 7 tools of Quality. Apart from traditional SPC, the other 7 tools are valid and useful for both lean and traditional operations, and should be known by every manager. Short run SPC is ideally suited to mixed model production. Please refer to The Lean Toolbox for further detail. >>more

The Kano Model Dr. Noriaki Kano is a Japanese quality expert who is best known for his excellent "Kano model". The Kano model has emerged as one of the most useful and powerful aids to product and service design and improvement available. It is included here because of its relevance to QFD, the design process and R&D. The Kano model relates three factors (which Kano argues are present in every product or service) to their degree of implementation or level of implementation, as shown in the diagram. Kano's three factors are Basic (or "must be") factors, Performance (or "more is better") factors, and Delighter (or "excitement") factors. The degree of customer satisfaction ranges from "disgust", through neutrallity, to "delight"/ Please refer to The Lean Toolbox for diagram. >>more

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