identifierMetadata.xsd v3.0 draft last updated 2002/04/22 GML 3.0 candidate schema. Copyright (c) 2002 OGC, All Rights Reserved. This schema encodes the MD_Identifier class of OGC Abstract Specification Topic 11 (ISO 19115). Identifier of a metadata object, by which the object containing this identifier can be referenced from external places. Character string giving a name or code, optionally from a controlled list or pattern defined by an authority. Organization or party responsible for definition and maintenance of the code space or name space.