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Glen Blair reports: <<One of the newer machines has caused some
problems for our customers. A malfunctioning machine typically exhibits
one of five or six general symptoms, but the cause of the same symptom
can differ from machine to machine. Diagnosing the problem is often
complex and regularly requires our field service engineers and customer
support engineers (manning the phones) to refer customers directly to
engineers working in research and development.>>
One note before beginning: The troubleshooting procedures should not
just be used to solve customer problems; they should also become a
resource for designers, who may be able to detect recurring themes and
use them to identify and solve design flaws in the product. That may
offer a larger potential payback than simply creating a troubleshooting
guide.
Start with the recognition that you're trying to accomplish at least
two things. First, you may want users to be able to diagnose or at
least narrow-down problems before they call so as to minimize the time
they spend on the phones with support staff. Second, you may want to
come up with a tool that helps the support staff home in on a problem
more quickly than might otherwise be the case, and provide proven (or
at least "most likely") solutions without having to reinvent the wheel
each time.
Both suggest that your first step should be to work with the field
service and customer support people. An ideal, if somewhat chaotic,
solution might be to gather a bunch of them together in one place for a
joint meeting in which they identify the most common or serious
problems (brainstorming) then discuss their problem-solving approaches.
Paying attention to how they attack problems will reveal commonalities
and differences in the approach; the advantage of getting them together
in one place is that one person's comment may inspire someone else to
remember something they might otherwise forget. It also lets you watch
them discuss, attack, and defend the various approaches--and hopefully
reach consensus on a smaller number of "best practices".
If you can't gather everyone together simultaneously, try to get at
least one field person and one developer together; the former provides
the reality check, and the latter provides the theoretical knowledge,
and you can't solve the problem without both forms of knowledge. Once
you've come up with an overview of the process, submit that to the
other staff for feedback. Incorporate all the feedback to produce
something semi-final that everyone can critique. Where you discover
radical disagreements, you may not be able to achieve consensus, but
may be able to determine situations in which each approach is most
productive.
Remember to ask the users and your company's staff about the context
for problem-solving. Users may be working in an environment where they
need heavily plastified, highly legible printed flowcharts (i.e., no
computer support available); your company's staff may work on a
corporate network and find that a knowledge base works better. You may
end up producing two or more products.
<<Much of the information I need is in the heads of individual
technicians and engineers, and in "unofficial" emails exchanged by
those emails (which I'm currently compiling).>>
Since this "tacit" knowledge is difficult to obtain by simply asking,
consider using role-playing. For example, sit down with an engineer and
say the following: "For the next few minutes, we'll pretend I'm a user
and I just called you with a problem. 'The frammistat is not
functioning.' What would you tell me to do?" To talk to field staff
first so you understand what kind of problems arise and typical
troubleshooting steps so that the role-playing exercise is credible;
engineers hate it when you clearly don't know what you're talking
about.
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