REPLY Getting a Good Problem Statement (SD6531)
SDMAIL Schuette, Wade
wschuett at jhsph.edu
Wed Aug 29 05:34:27 CDT 2007
Posted by "Schuette, Wade" <wschuett at jhsph.edu>
I agree with Bill (below) and expand one comment.
I used to run an executive intelligence group at Cornell University that
various VP's would come to for answers to questions they had, where the
data or proxies for the data were somewhere in some combination of
databases we could get to. I was also taking a computer science course
in the development of "natual language query systems."
I didn't make myself popular when I told the CS people that the best way
to "optimize" most queries from execs was to throw them away and start
fresh. I can't recall a single instance where the question someone asked
me ("the presenting complaint") was even close to the answer they actually
needed.
One example: I was asked "How many employees do we have in the
Agriculture School?" I replied with a polite version of "Help me
understand why you want to know that. What issue are you trying to
decide?" In this case, he was trying to decide whether there would
be sufficient business at lunchtime to build a new cafeteria in that
vicinity. So, yes, he was interested to know that directly across
the street was a building with 200 federal employees in it that wasn't
shown on our payroll. And, yes, come to think of it, I guess students
do eat lunch too, don't they! Etc.
The question recommended by my late statistics professor, Jack Kieffer,
( a member of the National Academy of Sciences) was "What does it cost
you to make this decision incorrectly?" Jack asserted that there was no
way to create an appropriate statistic without knowing the client's risk
curve - how much did they win if they were right? How much did they lose
if they were wrong? That had to be factored into the analysis. There was,
in his opinion, so such thing as a "generic" answer. Statisticians
battle over that, but, as an MBA, I agree with Jack.
In fact, I think that's a big factor in why most academic research is
completely ignored by policy makers -- they don't care about "p-values",
they care about re-election, or power. Of course, the actual agenda may
be hard to extract or a secret.
Regardless, real people will have to take real action and face real
consequences if they are right or wrong, based on what you are telling
them, so it seems wise to include that in the analysis. Most adults
can deal with major losses, if they entered into the deal knowing what
they actually were risking.
Others, academic purists, may strongly disagree with that, of course -
and argue that they are not responsible for the "misuse" of their
conclusions. Hmm. US Product Liability law would hold that one is
responsible for "expectable misuse" of equipment. So far that hasn't
been applied much to software or analyses, but maybe it should . Again,
opinions will differ. Still, I'd like to know who's staking what on the
answer being "right", and what they would define as "right."
As to the questions to ask, Bill (below) suggests "What are the most important
questions we should be asking?" I'd add to that, "Who actually has first-hand
knowledge of the situation that we could talk to?" weighted by finding the
disempowered people low in the power structure and asking them "What do you
think is going on here?" Their answers will differ markedly from the "view
from the top", and will bring in unexpected factors that are completely
invisible up the chain of command -- some of which will be true show-stoppers.
Earl Brooks, a B-school faculty member at Cornell, used to consult for GM.
They'd bring him in for big bucks to deal with issues they were having.
Earl would arrive a day early, and spend the day buying drinks for
employees at the bar nearest the exit, and just ask them to tell him what
was going on at the plant. Then he'd meet with the top guns, stroke
his chin wisely, and come back with suggestions at $50,000 apiece (30
years ago) that management could have gotten themselves for free, if they'd
asked. Usually his suggestions worked and management was delighted and
astounded at his perceptive insight.
Rule of thumb -- in multilevel organizational hierarchies, the critical
details at any level are completely lost in the oversimplified graphics
and mental model two-levels up or higher. Toyota's "Lean" approach suggests
"Genchi Genbutsu" - or, go down and look for yourself before making
pronouncements.
Similarly, I think the critical variables two layers above one and higher
in such organizations are also completely unexpected and invisible, or
meaningless at lower levels -- it's like our body's cells grasping the
concept "Accepted by Harvard." It's literally another world.
Loosely coupled, but different dimensions.
So, by that reasoning, either a "problem" is generally multidimensional
and multi-level, or it will be perceived as "different" problems at
different levels of stakeholders.
So, that suggests again that opinions on the relevant factors should be
solicited from as many different levels as possible, because they may be
wildly different. Similarly, there's no reason built into physics that
the benefit of solutions will be some sort of constant at any radius of
consideration in space, time, or scale. There are many ways to win the
battle and lose the war. It may be good to check the sensitivity of the
answer to your planning horizon - if the sign changes as you expand your
horizon (from good to bad, or vice versa), be very cautious.
Other opinions may vary of course.
Wade Schuette
Ann Arbor, MI
Posted by "Schuette, Wade" <wschuett at jhsph.edu>
posting date Tue, 28 Aug 2007 12:23:57 -0400
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