The development of object-oriented technology and the emergence of IEC 61970 EMS-API standard have had deep effects on the standardization of the supporting platform of power system. A new promising way is put forward

in which a system conforming the IEC 61970 standard is constructed by the method of object-oriented real-time database directly storing common information model (CIM)

so no mapping between data models is needed and high efficiency is ensured. The design and implementation of an object-oriented real-time database management system named RCS-9001 RTOODBMS is introduced from such aspects as the building of CIM

multi-layer data accessing interface based on component interface specification (CIS)

various graphical toolkits for modeling and browsing CIM compliant data and scheme for heterogeneous platform.