It is assumed that basic concepts of OPC UA information modelling are understood in this specification. This specification will use these concepts to describe the ISA-95 object models. The concepts and terms used to describe the OPC UA Information models are defined in other parts and listed in the following sections. Note that OPC UA terms and terms defined in this standard are italicized in the specification.

For the purposes of this document, the terms and definitions given in OPC 10000-1 and OPC 10000-3 as well as the following apply.