SGML: Publication of HyTime, Second Edition

Date: Tue, 02 Sep 1997 10:47:45 -0400
From: (James David Mason)
Subject: Publication of HyTime, second edition


WG8 members and liaisons:

In accordance with Recommendation 4 of our Barcelona meeting, WG8 is
delighted to announce the publication of the second edition of ISO/IEC
10744, HyTime. The material we approved in Barcelona can be found through

This second edition contains both HyTime and the SGML Extended Facilities.
This new edition of the standard is brought to you by WG8, which also
developed SGML and DSSSL. 

The second edition includes such key areas for the future of SGML and XML as: 

- architectures, which provide name spaces, inheritance from classes and
  superclasses, and schema definition

- the General Architecture, which provides inheritance from ancestors

- lexical typing, for searches and schema definition

- groves and property sets, which provide an extensible common object model
  (for SGML, DSSSL, HyTime, and most data object notations) for integrated
  querying and processing

- enhanced location addressing and hyperlinking

- Formal System Identifiers, for network addressing and storage object

WG8 is very grateful to the Project Editors, Charles F. Goldfarb, Steve
Newcomb, W. Eliot Kimber, and Peter Newcomb. Not only have they
assembledthe revision, they have been active with support and promotion of
HyTime for many years. Charles and Steve were among the principal
developers of HyTime and led the special plenary session of WG8 in
Copenhagen when the original text of ISO/IEC 10744 was accepted by WG8 back
in 1992. Charles, of course, has driven many of our projects (and us) to
completion. The Newcomb family, including Victoria and Torrey, have
contributed in more ways than just providing two editors for the standard.
Eliot has, as usual, put on a virtuoso performance in showing how many
things can be made from just one little SGML source.

There is a Reader's Guide to HyTime2 at, with all the
information you need to supplement the master document on the WG8 site.

Congratulate the HyTime crew, and have fun reading!


Dr. James D. Mason
(ISO/IEC JTC1/SC18/WG8 Convenor)
Lockheed Martin Energy Systems
Information Management Services
SGML Systems Development
1060 Commerce Park, M.S. 6480
Oak Ridge, TN  37831-6480   U.S.A.
Telephone: +1 423 574-6973
Facsimile:  +1 423 574-0004