The HL7 Health Level Seven Version 3 (V3) standard focuses on interoperability of the health and medical transactions. It specifies how the information should be presented in a clinical context to ensure that the two parties of a transaction share the semantics of the data exchanged. The messaging standard defines a set of interactions, i.e. XML-based messages, to support all healthcare workflow. The Reference Information Model (ISO/HL7 21731) expresses the data content needed in a specific clinical or administrative context. The HL7 Development Framework (ISO/HL7 27931) specifies messaging, processes, tools, actors, rules, and artefacts relevant to development of all HL7 standard specifications for the development of an interoperable healthcare framework.