Saturday, September 10, 2005

Measurement and Data Collection

Topic: Management improvement

This is my response to the Deming Electronic Network message on measurement.

I find it useful, to assure that data collection is a wise use of
resources, to ask what will be done with the results. If you don't
have an answer for how you will use the data, once you get it, then you
probably shouldn't waste resources collecting it (and I find there is
frequently no plan for using the results).

I have found it helpful to ask: what will you do if the data we
collect is 30? What will you do if it is 3? The answer does not need
to be some formula, if 30 then x. But rather that the results would
be used to help inform a decision process to make improvements
(possibly the decision to focus resources in that area). I find, that
asking that question often helps reach a better understanding of what
data is actually needed, so you then collect better data.

I believe, it is better to focus on less data, really focus on it. My
father, Bill Hunter
, and Brain Joiner, believed in the value of actually plotting
the data yourself by hand. In this day and age that is almost never
done (especially in an office environment). I think doing so does add
value. For one thing, it makes you select the vital few important
measures to your job.

But it is very difficult for anyone to actual suggest plotting data by
hand: they must be very secure in their reputation (or maybe a bit
crazy), because it seems to be a hopelessly outdated idea that paints
you as the same. My appeal, within the Deming context, is that the
psychology of plotting the points yourself is qualitatively different
from letting the computer do it. Plotting the data yourself serves to
lift the data that you plot out of the sea of data that we find ourselves
inundated with and gives you a deeper connection to it. You would not
plot all the data that you use by hand; just the most important items.


John Hunter
Curious Cat Management Improvement Connections

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