scope:

Specifies an abstract syntax known as the Standard Generalized Markup Language (SGML). The language expresses the description of a document's structure and other attributes, as well as other information that makes the markup interpretable.Specifies a reference concrete syntax that binds the abstract syntax to specific characters and numeric values, and criteria for defining variant concrete syntaxes. Defines conforming documents in terms of their use of components of the language. Defines conforming systems in terms of their ability to process conforming documents and to recognize markup errors in them. Specifies how data not defined by this International Standard (such as images, graphics, or formatted text) can be included in a conforming document. The Standard Generalized Markup Language can be used for documents that are processed by any text processing or word processing system. It is particularly applicable to: a) Documents that are interchanged among systems with differing text processing languages. b) Documents that are processed in more than one way, even when the procedures use the same text processing language. Documents that exist solely in final formatted form are not within the field of application of this International Standard.