[SI-LIST] Re: [Expert system]
- From: Ray Anderson <ray.anderson@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 25 Mar 2005 08:40:53 -0800
The title of this post caught my attention. I'm not really going to
comment on where EMC research is going on, however the concept of
"Expert Systems" as related to EMC and SI has always struck me as a
misnomer.
I've authored a number of SI related CAD tools and have used many fine
commercial tools whose end goal is to simplify a complex analysis or
design task enough that the average experienced engineer can use the
tools to their advantage. However calling any of these tools "Expert
Systems" or "Expert Tools" with the intent to imply that knowledge of an
expert in a field will be imparted to the user by merely utilizing one
of these tools is a pretty far stretch in my opinion.
While I was at Sun our SI staff had numerous conversations on this topic
and concluded that these tools should be termed "Tools for Experts" as
opposed to "Expert Tools". You aren't going to hand a complex tool like
HFSS or Specctraquest for example, to a new grad or 'Joe Garageshop' and
expect to get the same results as someone with 20 years of experience in
the field. (note: by citing a couple tools by name in this paragraph I
wasn't implying that those particular tools are particularly difficult
to use, but was just trying to give some non-trivial examples)
I'll accept that a tool for screening a design for EMC flaws and
red-flags may be a bit more amenable to the concept of an "Expert Tool"
than say a full-wave 3D FEM extractor, however, if the user is depending
totally on the tool rather than using it to supplement their knowledge
and experience, I can't really foresee a good outcome.
anyway, that's my 2 cents for Friday...... :)
-Ray
--
Raymond Anderson
Senior Signal Integrity Staff Engineer
Product Technology Dept.
Package Engineering Group
Xilinx Inc.
yous@xxxxxxxxxxxx wrote:
>To Dear All:
>
>Researchers in University of Rolla (UMR) and EMC related companies have
>developed "expert system" to check or detect EMI and EMC problem early.
>
>I wonder whether EMC engineers actually use. If they use, then I wonder to
>what applications they use.
>
>It looks like to me that there are lots of research going on in UMR, but other
>than UMR, I cannot find any papers from any other research group.
>
>Thank you for your comments in advance.
>
>Thank you very much.
>Sincerely,
>Se-Ho You
>(cell) +1-303-818-4352
>
>
>
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