CIECA XML Schema
The XML schema provides a technical interpretation of the BMS by defining the precise format for implementing the services illustrated therein. The schema is a faithful rendering of the message as described in the BMS, including exact replication of aggregate and element names, data types, tag structure, etc. There are no embedded attributes in the schema.
Beginning with 2012R1, there are two schemas in each release. The only difference between two schemas is one contains all the codes embedded within it.