An Introduction to the Principles of an SGML Application
http://www.stc.org/confproceed/1994/PDFs/PG303.PDF

Oster, John W. II
STC Proceedings
1994

Abstract:

SGML (ISO 8879-1986, The Standard Generalized Markup Language) is now in the mainstream of document design and development. Effective application of this International Standard demands a through understanding of Document Analysis and the four components of an SGML Application. The SGML Declaration establishes the overall syntax. The SGML Prolog uses this syntax to define a document model. An SGML Instance is a data file created in conformance with the Prolog's model and an SGML Canonical file is the output ofParsing the Instance. This paper reviews the application and interrelationship of these components.