Great article to mention Joshua.
It is a great read for those of us in an MBA heavy corporate
environment. I find myself coming back to read and reference this
article often. Martin touches this in another somewhat charged
article from the same publication called "designing in hostile
territory"... also worth reading.
As an aside... the relationship between reliability and validity...
is very similar to that between efficiency and effectiveness. The two
are not mutually exclusive and in fact interact to the point that
it's not possible to optimize both.
Mark
On Nov 16, 2008, at 8:46 AM, Joshua Seiden wrote:
I've probably posted this reference before, but Roger Martin wrote a
good article comparing two ways of thinking about problems and
processes. He calls this dynamic reliability vs. validity.
"Reliability seeks to produce consistent,
predictable outcomes by utilizing a system
that is restricted to the use of objective data....
"Validity, on the other hand, seeks to
produce outcomes that meet the desired
objective, even if the system employed
can%u2019t produce a consistent,predictable out-
come."
Personas are a classic example of a method that is "valid" in
Martin's terms.
The whole article can be found here:
https://www.rotman.utoronto.ca/integrativethinking/
ValidityVSReliability.pdf
JS
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http://www.ixda.org/discuss?post=35624
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