November 12, 2013

Understanding Knowledge

Today's blog stems from a class discussion in the PIUSS module that ties together the importance of knowledge. Today we discussed and looked at normal distribution charts, and how plotting averages on a graph with upper and lower control limits can show whether the variation that occurs in a process is a common cause (i.e. Within the control limits) or a special cause (outside the control limit). This links back to Deming's SOPK and his focus on understanding variation within a process. The use of these graphs can illustrate whether there is any variation (outside the control limits) occurring and whether you are in a process of statistical control. If you are not, you need to understand the root cause of this variation, and attempt to remedy the reason to stop it happening again (or if the variation causes a favourable outcome, ensure it happens again).

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