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.
The security technical committee of HL7 has produced a set of guidelines for the security and privacy policy management, privilege management, access control and auditing. Some of these standards are: HL7 Healthcare Privacy and Security Classification System (HCS), Role-based Access Control Healthcare Permission Catalog (RBAC), HL7 Version 3 Standard: Privacy, Access and Security Services; Security Labeling Service (SLS), and the Privacy, Access and Security Services (PASS).