This document defines the OPC UA OPEN-SCS companion specification. OPEN-SCS is a set of interface specifications for exchanging product serialization information across an enterprise and their contract partners from the packaging process to the distribution warehouse. The interface specifications are called the OPEN-SCS Packaging Serialization Specification (PSS).

The PSS defines an abstract information model and transaction model, which can be implemented in multiple specific technologies, such as OPC UA, XML and Web services. This standard is the OPC UA technology implementation of the Open Serialization Communication Standard (OPEN-SCS) Packaging Serialization Specification (PSS).