This document specifies requirements for data to be portable data. The following are within the scope of this document:

—？fundamental principles and assumptions for portable data;

—？the role of semantic encoding in making data portable;

—？the syntax of a structured format for portable data;

—？the metadata and the reference data to include as part of portable data.

The following are outside the scope of this document:

—？the information to be represented by the interoperable data format.