Notation system ID

Subject: Notation system ID
From: Frank Christoph <christo@xxxxxxxxxxxxxxxxxx>
Date: Wed, 27 Aug 1997 15:14:51 +0900
I know what a notation is and I know what a system ID is.  What is a notation
system ID, exactly?  More specifically, what is the appropriate thing to
supply as a value for the external-graphic flow object's notation-system-id:
property for a TIFF image?  Is it supposed to be a program that turns a TIFF
image into whatever format the backend produces?

Incidentally, since we are on the subject of IDs, where does one learn the
_public_ IDs of things (like TIFF, for example)?  I seem to recall a seeing
mention of a standard that lists such things, but is there an alternative
resource?  (If not, a list of common public IDs --- for SGML, TIFF, GIF, TeX,
etc. --- would be a useful addition to the DSSSL Handbook.)  I suppose not,
since the registration needs to be centralized... sometimes I think it would
be much better to work out some sort of system using public key encryption to
decentralize registration mechanisms for URLs, domain names and the like.

Frank Christoph                 Next Solution Co.      Tel: 0424-98-1811
christo@xxxxxxxxxxxxxxxxxx                             Fax: 0424-98-1500

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