From: D. C. Sessions (email@example.com)
Date: Mon Mar 20 2000 - 07:15:11 PST
Kim Helliwell wrote:
> Dan (and the list)
> I guess I'm reluctant to do this, as I'm not sure what purpose would
> be served. Some of the vendors are actually aware they have problems
> and are, to their credit, trying to fix them. My comments were aimed
> at vendors who are (or appear to be) clueless about how these models
> are actually used. But I don't think it would do to embarrass them
> publicly. At least not yet!
> In a sense, I don't know that I've found *ANY* vendor who supplies IBIS models
> that are consistently good across the board. Vendors are not monolithic;
> they have different product groups, and some groups do a better job than
> others. If my comments can heighten the awareness of these vendors or
> product groups, I will feel it was worth posting my diatribe. And I've
> already had some indications that vendors themselves welcome this sort
> of criticism as it helps them know how to do a better job.
> So the best thing to do about it is to complain to the vendor whenever you
> get a model that is not up to par. Let them know in specific detail what
> is wrong, why it's wrong, and how it should be fix (if you know). Some
> will push back, but the better ones will thank you I believe.
Kim, please consider telling them that incoming QA will screen against their
IBIS models, and make sure that they know what that means WRT ultranarrow
VI curves and so forth. If they try to get cute by making anything-goes
models, tell them you can't qualify them because the part won't work in
Until IBIS data is taken seriously (ie it affects the bottom line) we
have to accept that it's part of the advertising budget and has the
same degree of technical quality.
-- D. C. Sessions firstname.lastname@example.org
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