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To: david sosiak who wrote (20415)7/10/1998 3:22:00 PM
From: John Mansfield  Respond to of 31646
 
David, SIM forum has some very intelligent and knowledgable people discussing embedded y2k.
It is just fun to poke around on the internet, and trying to find some real good and valuable information. As I read, I post it for others to use. Also, in this way I can always refer back to information I had found before.

This is another interesting post. David Hall is one of THE authorities on embedded Y2k, IMO (read his biography!)

Regards,

John

_______

'106. Author: David C. Hall ( dhall )
Date: Jul. 2 5:08 PM 1998

There are many "Urban Myths" being propagated
throughout the media and the Internet.
However, one thing I have learned in the last
four years - there is no absolute when it comes to
year 2000. Every one of the absolute statements
I or anyone else has made over the last four years
has been shown to have exceptions. The only
thing absolute about Year 2000 is that impacts
will occur in places that will astound and
surprise everyone. We need to assume nothing,
even in the face of overwhelming evidence. Our
system/equipment might be the one exception to
the rule.

An example is elevators. I usually quote Otis
and Dover that none of their elevators, when
used as standalone devices, have Year 2000
problems. I then extrapolate that into
elevators, when used as standalone devices,
should not have any Year 2000 problems. Last
week I got an e-mail from the UK about a
standalone elevator that does indeed have a
Year 2000 impact and will stop soon after "00"
hits its microprocessor. Something to do with a
filled buffer. Point is, no one should ASSUME
anything without testing THEIR systems based
on THEIR standard of Year 2000 compliance.

Sorry to have to say this, but it seems to be
reality. We must test each and every one of OUR
systems and microprocessor-based equipment
to BE SURE that we have no Year 2000 impacts.
Since we really don't have time to do that, I
recommend that a risk-based triage plan be
adopted.

Dave Hall
dhall@enteract.com