CAE was for a long time dominant only in the area plant planning and construction. Today, it is the foundation for a successful digitalization of many, if not all, processes during the production phase of a plant. For this, engineering data has to be generated in a way, that the data can be used during operation for maintenance and production processes as well. Indispensable is a harmonized data model covering the full asset lifecycle. It enables any application to work without any information loss. Equally important is a tool landscape to make access to this data easy and efficient. Only if data is used it provides value! With OneCAE Evonik has implemented an innovative Engineering Master Data solution, data driven and powered by AVEVA. We at Evonik are convinced that the data driven approach secures asset information for the full lifespan of a plant, breaking information silos, ensuring higher engineering efficiency, AND equally supporting the asset in operation.