The UN/CEFACT Techniques and Methodologies Group (TMG) has announced the release of the "UN/CEFACT Core Components Technical Specification (UN/CEFACT CCTS)" Version 3 for a Second Public Review.  The Core Components Technical Specification defines meta models and rules necessary for describing the structure and contents of conceptual and physical/logical data models, process models, and information exchange models. The CCTS is dependent on the Unified Modelling Language (UML) in terms of how it is expressed in this specification, but does not require UML in its implementation.