This standard provides an explicitly defined meta-model (and meta-meta-model) for specifying system and software behavior. It defines a semantic basis of observables that allows each tool, whatever its own internal ontology, to communicate facts about the behavior of a subject system as precisely as the tool's meta-model allows. Conventional tool model elements are reduced into simpler, directly observable fact statements about system behavior.
ANSI/IEEE 1175.4:2008 history
2008ANSI/IEEE 1175.4:2008 Standard for CASE Tool Interconnections - Reference Model for Specifying System Behavior