The aim of BaSys 4.0 is the development of a basic system for production plants that realizes the efficient changeability of a manufacturing process as a central challenge [NS1] of the Fourth Industrial Revolution. Existing technologies must be networked and integrated in such a way that Industrie 4.0 applications can be implemented. For this purpose, the project is developing a virtual middleware [NS2] that permits providing the required services and interconnecting them with each other.