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- If the specification is about a communication protocol (e.g. a transfer protocol, an interface like the eHealth Hub webservices) and about the behavior of processors of this protocol, then interoperability is understood as the ability of two implementations of this specification – i.e. processors of this protocol - to communicate properly. In the case of an interface, ability of a user entity to communicate with an implementation (or processor) of the interface.
- If the specification is of an artifact (e.g. a business document, a process definition, a policy contract, a medication scheme), then interoperability is understood as the ability to process this artifact with consistent results, using different platforms or processors. In such a case, interoperability is often described as portability from the artifact perspective (the artifact is portable across platforms), while the platforms or processors are qualified as interoperable.
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