Interoperability of OPC UA PubSub with Existing Message Broker Integration Architectures.

Interoperable communication technologies are of key importance in production systems with increasing needs for data in their adoption of data-driven methodologies and new, emerging applications. OPC UA PubSub defines an alternative to the traditional client-server communication with a publish-subscribe model for data to cater to scalability and data-driven cloud application needs. In this paper, the OPC UA PubSub model is compared to some other message broker and communication technologies and integrated with an existing message based integration model for evaluating the interoperability. A case example is presented where data payloads and information security practices are integrated using an adapter approach.