It is assumed that basic concepts of OPC UA information modelling and XML are understood in this document. This document will use these concepts to describe the OPC UA and XML Data Type Mapping. For the purposes of this document, the terms and definitions given in OPC 10000-1, OPC 10000-3, OPC 10000-4, OPC 10000-5, OPC 10000-7, and XML Schema Part 2 apply.

Note that OPC UA terms and terms defined in this document are italicized in the document.