Currently Companion Specifications are used to create general interfaces to machines within a plant (see: [1, P. 27ff]). This is one step to reach an exchangeability of machines on the way to the future of Industry 4.0. But in the environment of enterprise companies also a process view and a recombinability of production steps is desirable to get the flexibility needed for the Industry 4.0. This paper proposes an Enterprise Domain Companion Specification as well as a mapping to corresponding Machine Companion Specifications as solution to that problem. Together with this mapping the Enterprise Domain Companion Specification allows to create an interactive process view for the IT and allows a recombination of process steps without changing the IT perspective to the production.
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