3.1. HyTime and Architectural Forms
ISO/IET 10744:1997 - The HyTime standard (second edition)
The standard is relatively easy to read (for a standard), but the
is a useful companion. See also the
table of contents,
and possibly the
machine-readable materials area.
- The SGML Users' Group distributes various supplementary materials,
- The HyTime editors:
- Charles Goldfarb, Information Management Consulting;
Steven R. Newcomb,
W. Eliot Kimber, ISOGEN International Corp.;
Peter J. Newcomb,
About HyTime: introductions and overviews.
- SIL special topics:
Archtectural forms and
Groves, Grove Plans, and Property Sets in
- HyTime overview and links
- A Tutorial Introduction to SGML Architectures.
This one is very good! It's a clear introduction to
architectural forms, DTDs, validation and instances, exemplified in XML.
- HyTime Application Development Guide. Hard going, but
detailed and pretty clear. I think this refers to the first
version of the HyTime standard, because its discussion of linking
doesn't seem to match with what I find in the HyTime standard (but
perhaps that's just me). At the same site is a good
- SGML Architectural Forms (rather brief article from
- Quick Guide to HyTime Basics. A useful summary, but one
which, again, seems to concentrate on HyTime 1st edition.
- Document Architectures. What You Need to Know About
the New HyTime: a useful crib explaining why HyTime is vital!
(also discussed in the
SIL AF section).
- Specifically, the part of HyTime which refers to hyperlinks is
Clause 8: Hyperlinks module.
Groves are a central concept, albeit rather difficult. There are
several exellent discussions of groves in the appropriate SIL
special topics section. Here is a selection.
- W. Eliot Kimber on
What are groves? (informative and clear, but also rather
dense). It includes the illuminating remark:
The HyTime standard also relies on groves and property
sets in that all HyTime functionality is defined as operations on
nodes in groves, rather than on the syntax of SGML documents. Thus,
HyTime and DSSSL share the same fundamental abstract data view of SGML
documents. This same abstract data view could be used by any other
processor, standard or proprietary.
- Derek Denny-Brown.
- The Purpose of Groves, Steve Newcomb.
- Charles Goldfarb.
- Kimber again, on
Managing SGML Architectures and Object Models with Groves.
This might not make a lot of sense before you've made some headway
with the earlier ones (part of a
collection of papers at
- Here's a useful
of a grove.
Support for HyTime in tools, and other supporting applications.
- Architectural form processing in
- A James Clark posting to
Architectural forms in SP1.1.
- Others to look at:
Megginson's XAF processor,
along with a discussion of
basic architectural forms in that context.
- Kimber paper on
Re-Usable SGML: Why I Demand SUBDOC, which
includes the remark
The HyTime function needed to support cross-document ID
references is minimal and
can be easily implemented by tool vendors and in purpose-built tools.
[...] NSGMLS and Perl are more than capable of
providing the same functions. You need only support the
nmlist architectural forms and need
not even support multiple locations (meaning that each nameloc refers
to a single target element).
- HyBrowse is a (Wintel-only) HyTime browser from
TechnoTeacher, a company formed by Steven Newcomb.
- See also the XLink and XPointer specifications within