B. Wally, C. Huemer, A. Mazak, M. Wimmer: A Variability Information Model for OPC UA, 23rd International Conference on Emerging Technologies and Factory Automation (ETFA), Torino, Italy; 04.-07.09.2018; in Proceedings of the 23rd International Conference on Emerging Technologies and Factory Automation (ETFA) 2018, ISBN: 978-1-5386-7107-8, pages 1033 - 1036.


OPC Unified Architecture (UA) is a powerful technology for modeling and instantiating domain-specific information in a standardized manner. Its initial application scenario is in the domain of automated production systems, that increasingly have to deal with variability information, (i) regarding the products being manufactured and (ii) regarding the production systems themselves. In this work we propose a non-intrusive OPC UA information model for the modeling and querying of variability information using feature models, which are a well-known paradigm in the management of software product lines. Our information model can be applied “aside” existing domain information without interfering with their internal structure.