This ReferenceType can be used to expose that two different Nodes in the AddressSpace representing the same functionality. It refines the RepresentsSameEntityAs ReferenceType and defines that the same entity in the real world shall be a functionality. For example, the functionality to move an axis might be provided by an Object representing a function block of a PLC with that functionality, but also be an Object representing the functionality of a drive. The ReferenceType can be used to related both Objects.