IEC 61970 defines an application program interface (API) for an energy management system (EMS) for integration of different EMS effectively and conveniently, which includes Common Information Model (CIM) and Component Interface Specification (CIS).

• 为了能够快速实现不同EMS系统的有效集成，美国EPRI提出了一套EMS系统的应用程序接口规范(CCAPI)，现已被IEC采纳为IEC-61970标准。