This International Standard specifies a Component Interface Specification (CIS) for energy management
systems application program interfaces. This part of IEC 61970 specifies the format and rules for producing a
machine readable form of the Common Information Model (CIM) as specified in the IEC 61970-301 standard.
It describes a CIM vocabulary to support the data access facility and associated CIM semantics.
This part of IEC 61970 supports a mechanism for applications from independent suppliers to access CIM
metadata in a common format and with standard services for the purpose of subsequent CIM data access.
Secondary objectives are to provide CIM versioning capabilities and a mechanism that is easily extensible to
support site-specific needs. The proposed solution:
is both machine readable and human readable, although primarily intended for programmatic access;
can be accessed using any tool that supports the Document Object Model (DOM) application program
interface;
is self-describing;
takes advantage of current web standards.
This document is the Level 2 Component Interface Specification document that describes in narrative terms
(with text and examples based on the CIM), the detailed definition of the CIM metadata interface to be
standardized.