Draft61850-7-1©1EC:2002 -11-57WG10-12(61850-7-1)R2-02/Draft FDIS 3 Terms and definitions Fur the purposes of this International Standard,the terms and definitions given in IEC 61850- 2 apply. 3.1 information Knowledge concerning objects,such as facts,events,things,processes,or ideas,including concepts, that within a certain context has a particular meaning.(IEV 101-12-01) 3.2 information model represents the knowledge concerning substation functions (devices)made visible and accessable through the means of IEC 61850.The model describes in an abstract way a simplified representation of a real function or device 3.3 model is a representation of some aspect of reality.The purpose of creating a model is to help understand, describe,or predict how things work in the real world by exploring a simplified representation of a par- ticular entity or phenomenon. 4 Abbreviated terms ACSI abstract communication service interface API application program interface CDC common data class CT current transformer IED intelligent electronic device LD logical device LN logical node LLNO logical node zero LPHD logical node physical device MMS Manufacturing Message Specification PHD physical device SCSM specific communication service mapping SoE sequence of events UML unified modelling language VT voltage transformer XML extended markup language Version Draft FDIS R2-02 2002-09-30:(08:00)Draft 61850-7-1  IEC:2002 – 11 – 57/WG10-12(61850-7-1)R2-02 /Draft FDIS Version Draft FDIS R2-02 2002-09-30 : (08:00) 3 Terms and definitions Fur the purposes of this International Standard, the terms and definitions given in IEC 61850- 2 apply. 3.1 information Knowledge concerning objects, such as facts, events, things, processes, or ideas, including concepts, that within a certain context has a particular meaning. (IEV 101-12-01) 3.2 information model represents the knowledge concerning substation functions (devices) made visible and accessable through the means of IEC 61850. The model describes in an abstract way a simplified representation of a real function or device. 3.3 model is a representation of some aspect of reality. The purpose of creating a model is to help understand, describe, or predict how things work in the real world by exploring a simplified representation of a par￾ticular entity or phenomenon. 4 Abbreviated terms ACSI abstract communication service interface API application program interface CDC common data class CT current transformer IED intelligent electronic device LD logical device LN logical node LLN0 logical node zero LPHD logical node physical device MMS Manufacturing Message Specification PHD physical device SCSM specific communication service mapping SoE sequence of events UML unified modelling language VT voltage transformer XML extended markup language