I will echo Werner.  I have a problem with any statement that broadbrushes
a technology.  Some of the work by John Hagge of Rockwell, presented at a
COTS conference earlier this year, showed that there are good COTS
components and there are BAD COTS components.  You have to do a battery of
tests to determine what will work for your product in your end use
environments.  We use some COTS components in our designs, and they have to
meet some damn stringent requirements, or they would not become part of our
high performance products.  Sometimes there is a pretty good reason why
COTS components are so much cheaper.  Sometimes not.

Doug Pauls
Rockwell Collins




Werner Engelmaier <[log in to unmask]>@ipc.org> on 07/29/2002 04:02:53 PM

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Subject:    Re: [TN] Request for examples of bad practice


Hi David,
You relate to us:
>As to your issues there is an  August 2001 report that simply states COTS
hardware is neither >safe nor reliable enough to use in mission/flight
critical systems. This report was paid for by >the FAA. They are not "happy
campers"!!

I am very leery of reports that make such pronouncements without giving
enough details to let the reader ascertain what the report writers actually
did or even whether they knew what they were doing.
I certainly have seen COTS hardware better than some mission/flight
critical
systems.

Werner Engelmaier

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