When you look around a factory, you are likely to see objects interacting with other objects. And there are specific things that each object can do. ​ It, therefore, makes sense that, in order to build autonomously reconfiguring factories, each object needs to be able to describe its capabilities to other objects so that they can interact with no human intervention. ​ OPC UA Information Modelling is an effort to enable the description of complex industrial systems through a standardised and object-oriented interface. ​ To gain a deeper understanding of how it works, I invited Jouni Aro for a podcast conversation. ​ Jouni is the Chief Technology Officer at Prosys OPC Ltd, a leading provider of OPC and OPC UA technology with over 20 years of experience in the field. He's been the main architect for Prosys OPC UA SDKs and is an active member of the Technical Advisory Council and several working groups of the OPC Foundation. ​ Below is the outline of our conversation ​ ✅ What is OPC UA Information Modelling ✅ Benefits of Information Modelling for Industry 4.0 ✅ OPC UA Unified Object Model for Description of Complex Systems ✅ Tools for Building and Managing OPC UA information models ✅ OPC UA Companion Specifications, Custom Information Models ✅ OPC Cloud Library, Online Information Model Repository ✅ Workflow for integrating OPC UA Information Model into Products ✅ OPC UA Information Modelling in Industrial System Integration ✅ OPC UA Information Modelling and ISA95 ✅ OPC UA Information Modelling for Vertical Integration ✅ OPC UA Information Modelling for Horizontal Integration ✅ Is OPC UA Information Modelling Future-Proof? ✅ Information Modelling for OPC UA PubSub Over MQTT