ISO/IEC 19500-3:2012 defines

* the syntax and semantics of a component model, based on CORBA IDL, and a corresponding meta-model,

* a language to describe the structure and state of component implementations, and a corresponding meta-model,

* a programming model for constructing component implementations,

* a runtime environment for component implementations,

* interaction between components and Enterprise Java Beans,

* meta-data for describing component-based applications, and interfaces for their deployment, and

* a lightweight subset of the component model, programming model and runtime environment.