The Topic Map Constraint Language

The Topic Map Constraint Language (TMCL) is a formal language for defining schemas and constraints on topic map models. Specifically, TMCL is to constrain topic map models as defined by the Data Model for Topic Maps. The constraint language will provide a formal constraint language, related operational semantics, and a syntax.

Related links are

• Current official draft (2005 Feb 12) of the Topic Map Constraint Language and TMCL requirements and Use Cases (2004 Oct 16)
• Previous TMCL draft (2004 Oct 16)
• Previous TMCL requirements document (2003 Oct 31). This lays out some initial ideas on what the nature of TMCL should or could address.
• The TMCL discussion group. This is where all aspects of TMCL are discussed and debated.
• The guide to the topic maps standards, which explains what is currently happening with the topic map standards. This should help you understand what TMCL is and its relation to other standards.
• The current official Data Model draft. You can also see the editors' working copy, which is always up to date.
• The official draft of the XTM syntax specification. There is also an editors' working copy, which is always up to date.

If you have comments or questions related to these specifications, but are not involved in the ISO process, you can send them to: Graham Moore, Mary Nishikawa, and Dmitry Bogachev.