IEC 62656-3:2015定义了IEC 62656和CIM元模型之间的正式映射，以便将CIM本体导入IEC CDD，并确保两个标准的本体的互操作性，甚至在更广泛的标准之间。为了从CIM映射到IEC 62656-1中定义的数据模型，参考了CIM的UML表示。

IEC 62656-3:2015 defines a formal mapping between the IEC 62656 and meta-model for CIM in order to import the CIM ontology into the IEC CDD, and to ensure the interoperability of ontologies of two standards, or even among a wider spectrum of standards. For the basis of the mapping from CIM to the data model defined in IEC 62656-1, the UML representation of CIM is referenced.