The primary purpose of the ISO/IEC 19763 series is to specify a metamodel framework for interoperability. This document specifies a metamodel for registering document models (or schemata). Examples of such document models include:
— specifications for XML documents (using XML schema);
— specifications for JSON documents (using JSON schema).
This metamodel was developed taking into account the requirements for both XML schema and JSON schema, but is applicable to all current specifications for document models.