May 14 2015
Where Have The Scatterplots Gone?
What passes for “business analytics” (BI), as advertised by software vendors, is limited to basic and poorly designed charts that fail to show interactions between variables, even though the use of scatterplots and elementary regression is taught to American middle schoolers and to shop floor operators participating in quality circles.
But the software suppliers seem to think that it is beyond the cognitive ability of executives. Technically, scatterplots are not difficult to generate, and there are even techniques to visualize more complex interactions than between pairs of variables, like trendalyzers or 3D scatterplots. And, of course, visualization is only the first step. You usually need other techniques to base any decision on data.
Nov 30 2015
What Poka-Yoke Are And Are Not, And How To Sustain Them
Chet Marchwinski recently exhumed a 2011 discussion about Poka-Yoke that had been started by the following question:
In short, I can think of two reasons for production supervisors to disconnect Poka-Yoke:
The following paragraphs elaborate on these points.
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By Michel Baudin • Technology • 3 • Tags: Mistake-Proofing, Poka-Yoke, Quality, Quality Assurance, Usability Engineering, Work instructions