- ISO/IEC 13250 Topic Maps
- The reference document for the specification. - OASIS Published Subjects - Homepage for all published subjects published by the OASIS Technical Committees.
- Standard Application Model for Topic Maps - A formal data model, which will be used to define the syntaxes (XTM and HyTM), and also be the foundation for the query language (TMQL) and the schema language (TMCL).
- The Reference Model for ISO 13250 Topic Maps - RM4TM provides a framework for the definitions of Topic Map Applications.
- Topicmaps.net's Processing Model for XTM 1.0. - Processing Model, proposed by Topicmaps.net, known as PMTM4. Defines rules for processing topic map documents in order to reconstitute the meaning of the information they are intended to convey.
- XML Topic Maps - XTM 1.0 - The XTM 1.0 specification is an XML syntax for expression and interchange of Topic Maps.
