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The HL7 RIM, vocabulary specifications, and model-driven process of analysis and design combine to make HL7 Version 3 one methodology for development of consensus-based standards for healthcare information system interoperability.
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HL7 and RIM
" HL7 " also refers to some of the specific standards created by the organization ( e. g., HL7 v2. x, v3. 0, HL7 RIM ).
HL7 develops conceptual standards ( e. g., HL7 RIM ), document standards ( e. g., HL7 CDA ), application standards ( e. g., HL7 CCOW ), and messaging standards ( e. g., HL7 v2. x and v3. 0 ).
The Reference Information Model ( RIM ) and the HL7 Development Framework ( HDF ) are the basis of the HL7 Version 3 standards development process.
RIM is the representation of the HL7 clinical data ( domains ) and the life cycle of messages or groups of messages.
The Reference Information Model ( RIM ) is the cornerstone of the HL7 Version 3 development process and an essential part of the HL7 V3 development methodology.
RIM expresses the data content needed in a specific clinical or administrative context and provides an explicit representation of the semantic and lexical connections that exist between the information carried in the fields of HL7 messages.
* HL7 RIM: An Incoherent Standard and The HL7 RIM Under Scrutiny-rebuttal
HL7 and vocabulary
The V3 vocabulary work ensures that the systems implementing HL7 specifications have an unambiguous understanding of the code sources and code value domains they are using.
HL7 and specifications
However, since the earlier policy as described in the Bylaws of October 2002 placed the HL7 protocol specifications in the Public Domain, and under 17 USC § 102 there is no copyright protection for an " idea, procedure, process, system, method of operation, concept, principle, or discovery ", this revised policy may not be enforceable.
The HL7 Version 3 Development Framework ( HDF ) is a continuously evolving process that seeks to develop specifications that facilitate interoperability between healthcare systems.
The HDF not only documents messaging, but also the processes, tools, actors, rules, and artifacts relevant to development of all HL7 standard specifications.
Eventually, the HDF will encompass all of the HL7 standard specifications, including any new standards resulting from analysis of electronic health record architectures and requirements.
HL7 specifications draw upon codes and vocabularies from a variety of sources.
HL7 and process
HDF is a project to specify the processes and methodology used by all the HL7 committees for project initiation, requirements analysis, standard design, implementation, standard approval process, etc.
HL7 and Version
* Clinical Document Architecture ( CDA ) – an exchange model for clinical documents, based on HL7 Version 3
* Structured Product Labeling ( SPL ) – the published information that accompanies a medicine, based on HL7 Version 3
HL7 and 3
The first mutually published standard is ISO / HL7 21731: 2006 Health informatics — HL7 version 3 — Reference information model — Release 1.
The HL7 version 3 standard has the aim to support all healthcare workflows.
The HL7 version 3 messaging standard defines a series of electronic messages ( called interactions ) to support all healthcare workflows.
AORTA uses HL7 version 3 messages and documents as its core mechanism for information exchange.
Nictiz coordinates its efforts with regard to the usage of HL7 version 3 with the volunteers of HL7 the Netherlands.
EDIfact will be slowly replaced by HL7 version 3.
HLH basic theme is to target health care information exchange and interoperability using HL7 version 3.
The American Recovery and Reinvestment Act of 2009 ( ARRA ) and Health Information Technology for Economic and Clinical Health Act ( HITECH ) legislation specified HL7 versions 2. 3. 1 and 2. 5. 1, and the HL7 Continuity of Care Document ( CCD ), as the healthcare standards to meet certain certification requirements.
HL7 maintains its own OID registry, and as of January 1, 2008 it contained almost 3, 000 nodes, most of them under the HL7 root.
HL7 and one
HL7 is one of several American National Standards Institute accredited Standards Developing Organizations ( SDOs ) operating in the healthcare arena.
HL7 and methodology
The HDF is the most current edition of the HL7 V3 development methodology.
HL7 and for
* Common Terminology Services, an HL7 ANSI standard of requirements for interoperability across disparate healthcare applications
HL7 and its members provide a framework ( and related standards ) for the exchange, integration, sharing, and retrieval of electronic health information.
HL7 is an international community of healthcare subject matter experts and information scientists collaborating to create standards for the exchange, management and integration of electronic healthcare information.
HL7 promotes the use of such informatics standards within and among healthcare organizations to increase the effectiveness and efficiency of healthcare information delivery for the benefit of all.
The Working Group is responsible for defining the HL7 standard protocol and is composed of Standing Administrative Committees and Working Groups.
HL7 was founded in 1987 to produce a standard for hospital information systems.
However, HL7 is now adopted by ISO as a centre of gravity in international standardization and accredited as a partnering organization for mutual issuing of standards.
The name indicates that HL7 focuses on application layer protocols for the health care domain, independent of lower layers.
HL7 International currently asserts that business use of the HL7 standards requires a paid organizational membership in HL7, Inc. HL7 Members can access standards for free, and non-members can buy the standards from HL7, ANSI, or for some standards, ISO.
The segment names for a particular message type are specified by the segment grammar notation used in the HL7 standards.
HL7 v2. x has allowed for the interoperability between electronic Patient Administration Systems ( PAS ), Electronic Practice Management ( EPM ) systems, Laboratory Information Systems ( LIS ), Dietary, Pharmacy and Billing systems as well as Electronic Medical Record ( EMR ) or Electronic Health Record ( EHR ) systems.
HL7 and development
Health Level Seven ( HL7 ), is a non-profit organization involved in the development of international healthcare informatics interoperability standards.
HL7 collaborates with other standards development organizations and national and international sanctioning bodies ( e. g. ANSI and ISO ), in both the healthcare and information infrastructure domains to promote the use of supportive and compatible standards.
HL7 collaborates with healthcare information technology users to ensure that HL7 standards meet real-world requirements, and that appropriate standards development efforts are initiated by HL7 to meet emergent requirements.
HL7 encompasses the complete life cycle of a standards specification including the development, adoption, market recognition, utilization, and adherence.
The HL7 Services-Aware Enterprise Architecture Framework ( SAIF ) provides consistency between all HL7 artifacts, and enables a standardized approach to Enterprise Architecture ( EA ) development and implementation, and a way to measure the consistency.
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