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HyTime

markup language

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJun 26, 2026
Entity authorityQ1799609 ↗
Source-derived summary

HyTime (Hypermedia/Time-based Structuring Language) is a markup language that is an application of SGML. HyTime defines a set of hypertext-oriented element types that, in effect, supplement SGML and allow SGML document authors to build hypertext and multimedia presentations in a standardized way.

HyTime is an international standard published by the ISO and IEC. The first edition was published in 1992, and the second edition was published in 1997.

Legacy

Some of the concepts formalized in HyTime were later incorporated into HTML and XML:

HTML is an application of SGML for hypertext document presentations, that assigns specific semantics and processing expectations to a fixed set of element types.

XML defines a simplified subset of SGML that focuses on providing an open vocabulary of element types for data modeling and establishes precise expectations for how the marked-up data is read and subsequently fed to another software application for further processing, but does not assign semantics to the element types or establish expectations for how the data is processed.

XLink was intended as a simplified version of HyTime for use in the XML world, but has not seen much adoption.

Work on applying HyTime to back-of-book indexes eventually led to the development of Topic Maps, which eventually became far more successful in its own right than HyTime ever was.

Standard

The HyTime standard itself is ISO/IEC 10744, first published in 1992 and available from the International Organization for Standardization. It was developed by ISO/IEC JTC 1/SC 34 (ISO/IEC Joint Technical Committee 1, Subcommittee 34 - Document description and processing languages).

Further reading

Steven DeRose and David Durand, "Making Hypermedia Work: A User's Guide to HyTime," Kluwer Academic Publishers 1994 (ISBN 0-7923-9432-1).

References

External links

ISO/IEC 10744:1992 - Information technology -- Hypermedia/Time-based Structuring Language (HyTime)

Robin Cover's HyTime resource list

ISO/IEC 10744 Amendment 1 - an amendment to ISO/IEC 10744:1997 Annex A.3

Standards: HyTime: A standard for structured hypermedia interchange by Charles Goldfarb, from IEEE Computer magazine, vol.

Editorial summary

The public source identifies “HyTime” as markup language. This brief keeps that definition visible, then builds a research path around HyTime, markup and language.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1992, 1997, 1994—that can be checked directly. The linked authority record independently contributes the date 1992. Its value is orientation rather than verdict, with HyTime, markup and language providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “HyTime”, the useful work is to connect “markup language” to the records capable of establishing context and consequence.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 26, 2026. The linked authority identifier is Q1799609. The Library of Congress control number is sh2006002767. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1992, 1997 and 1994.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “HyTime”, its source revision and the description used here.
  2. Expand the search: follow HyTime primary sources, HyTime archive and HyTime research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “HyTime”?
  2. Which cited source is closest to the event, object or claim?
  3. Which institution is responsible for the underlying evidence?
Subject index

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Source & attribution

This entry incorporates text from “HyTime” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.