Tool 41
Concentration diagrams
What the tool is
This is a visual representation, built up over some time, of where a problem or defect is occurring. At the centre of the diagram is, for example, a picture of a product, a machine, a process, a map of an area, a floor plan of an office or factory, and the diagram is annotated with marks indicating where a problem has occurred. This is a useful tool in ensuring that the right problem is being solved and that the focus is in the most appropriate area.
When to use it
- To discover exactly where a problem is occurring, which may, in turn, reveal patterns of occurrence of the problem.
What you will need
- A flipchart and marker pens.
How to use it
- Draw a map of the building, the room, the ...
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