Date: Sep. 6, 2001
Link: http://www.charteris.com/mdl/
Source Author or Organization: Charteris

Meaning Definition Language (MDL) is intended to bridge the gap between structure and meaning by modeling a definition of the meanings (such as the properties or objects) conveyed by the structure of a document in terms of Resource Description Framework (RDF) or a Unified Modeling Language (UML) class model. This enables tools for tasks such as automated translation between XML languages, Semantic searches and meaning-level programming Application Programming Interfaces (APIs).

The page provides a download link for one such tool, a demonstration Java API tool (apidem.zip, 164k) that can be used to build applications whose Java classes express XML meanings rather than structure.