On Oct 8, 2005, at 10:30 AM, John Leo Zimmer wrote:
How about a more arbitrary number... such as a the $H of christening?
It could then be certified and registered with a central repository...
Open Forum perhaps? Conflicts resolved by adding a second here or
there.
That number would remain unique for the next 10,000 years or
whatever the
lifespan of $H.
jlz
"Look alive, here comes a buzzard."
-- Pogo
That would work, but there's another problem to be considered, too:
Changing the definition like this would (potentially or, in some
case, quite certainly) break VistA applications that depend on the
station number.
Cameron(?) described the approach used in HL7, which to treat them as
coded elements, where the significance of a code depends on the code
set (ICD9, SNOMED, CPT, what have you) to which it belongs. I think
the direction this is all going is integration into a larger
framework of vocabularies and terminology services. But, of course,
architectural considerations such as these don't solve the immediate
problem for VistA. If you want to maintain "binary compatibility"
with standard VistA and you want these applications to be usable
outside VHA, you're pretty much up a creek.
===
Gregory Woodhouse
[EMAIL PROTECTED]
"Education is a progressive discovery
of our own ignorance."
--Will Durant
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