ISO/IEC TR 15285:1998
Information technology — An operational model for characters and glyphs
Reference number
ISO/IEC TR 15285:1998
Edition 1
ISO/IEC TR 15285:1998
Withdrawn (Edition 1, 1998)
The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site


The purpose of this Technical Report is to provide a general framework for discussing characters and glyphs. The framework is applicable to a variety of coded character sets and glyph-identification schemes. For illustration, this Technical Report uses examples from characters coded in ISO/IEC 10646 and glyphs registered according to ISO/IEC 10036.

This Technical Report

-differentiates between coded characters and registered glyphs

-identifies the domain of use of coded characters and glyph identifiers

-provides a conceptual framework for the formatting and presentation of coded character data using glyph identifiers and glyph representations

This Technical Report describes idealized principles that were not completely followed in coding characters for ISO/IEC 10646 and in registering glyphs according to ISO/IEC 10036. The fact that ISO/IEC 10646, ISO/IEC 10036, and other standards do not completely follow the principles in the model does not invalidate the model and does not diminish the utility of having the model.

General information

  •  : Withdrawn
     : 1998-12
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 24
  • ISO/IEC JTC 1/SC 2
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