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OASIS - The Organization for the Advancement of Structured Information Standards is a global consortium that drives the development, convergence and adoption of e-business and web service standards. Like many bodies producing open standards, OASIS has a patent disclosure policy requiring participants to disclose intent to apply for software patents for technologies under consideration in the standard. However, this policy does not fully protect the public from exploitation of the open process for the preemptive development of a "standard" which confers a monopoly license position. See FOSS, UDDI

OBR - Observation request segment of an HL7 message.

OBX - Observation result segment of an HL7 message.

OCPRHIO - Orange County Partnership Regional Health Information Organization, awarded an HIE Expansion Grant in 2011 by Cal eConnect. See Cal eConnect

OCR - [1] Office for Civil Rights at HHS. [2] Optical Character Recognition

OHT - Open Health Tools. See OpenEMPI, SBCCDE

OID - Object Identifiers (OIDs) consist of a node in a hierarchically-assigned namespace, formally defined using the ASN.1 X.690 standard. In computer security, OIDs name object types in X.509 certificates. See X.509

OIG - Office of the Inspector General at HHS. See HHS

OMB - Office of Management and Budget at the White House. See CBO, GAO

OMG - [1] Object Management Group, a professional standards development organization (SDO) formed to develop enterprise integration standards. [2] TXT for Oh My Gosh! See HSSP, SDO, TXT

Onboarding - A formal business process with specific validation and testing activities that an applicant must pass in order to become a participant in the eHealth Exchange (formerly known as the Nationwide Health Information Network). See Healtheway, NwHIN, ONC

ONC - ("onk" or "oh-enn-sea") Office of the National Coordinator for Health Information Technology at the U.S. Department of Health and Human Services. See HHS, NwHIN, Onboarding, S&I, SHARP

ONCHIT - See ONC

Ontology - In computer and information science an ontology is a formal representation of knowledge created by establishing precise definitions of concepts within a specific domain, and by organizing the relationships between the concepts. See Concept, Semantics, Taxonomy, Terminology

OODA - ("OOO-dah") Observe Orient Decide Act, generally referred to as the OODA loop. The OODA loop originated in military strategy (specifically USAF fighter pilot strategy) but is now both a strategic and tactical operations algorithm routinely applied to many domains, such as competitive sports and business operations. See USAF

OpenEHR - ("open-air") International not-for-profit Foundation based in Australia and Europe working towards interoperable, life-long electronic health records.

OpenEMed - An open source software toolkit, OpenEMed is a set of healthcare information service components built around the OMG distributed object specifications and HL7 data standards. See HL7, OMG

OpenEMPI - An open source Master Person Index software project. The 1.0 version of Open eMPI was donated in 2008 by CHCF to OHT. OpenEMPI is an active software project as the Client Registry service in the OpenHIE system architecture. In 2014 OpenEMPI expects to release version 3.0 of the software. See CHCF, Client Registry, MPI, OHT, OpenHIE

OpenHIE - Open Health Information Exchange (OpenHIE) is a global, open-source collaboration focused on strengthening national health information exchanges for underserved countries. OpenHIE emerged from the HIPPP initiative funded by PEPFAR. The partnership was started to support development of the Rwanda Health Enterprise Architecture (RHEA) Project. Many contributors to OpenHIE are also original volunteers and contributors to OpenMRS. See HIPPP, Informatics, OpenEMPI, OpenMRS, Open Source, PEPFAR, RHEA

OpenMRS - Open Medical Records System, an open source enterprise electronic medical record system platform based around a core concept dictionary. Initiated by Regenstrief Institute for a project in Kenya. See Concept, OpenHIE, Regenstrief

Open Source - [1] In production and development open source is a pragmatic methodology that promotes free access to an end product's development process. [2] In software licensing, open source refers to software published under a license that generally allows anyone to make a new version of the software, port it to new operating systems and processor architectures, share it with others or market it. The general aim of the open source license is to let the code be more understandable, modifiable, duplicatable, or simply accessible, while still allowing it to be marketable. See FOSS, GPL, License, OSI, Red Hat, Source Code

OpenVistA - A proprietary VistA-RPMS hybrid enterprise EHR marketed by Medsphere. See CPRS, RPMS, VistA, WorldVistA

ORM - Clinical order segment of an HL7 message.

ORU - Observation result segment of an HL7 message.

OS - Operating System for a computing device.

OSHA - Occupational Safety and Health Administration.

OSHPD - California Office of Statewide Health Planning and Development.

OSI - [1] The Open Source Initiative (OSI) is a non-profit organization formed to educate about and advocate for the benefits of open source and to build bridges among different constituencies in the open source community. [2] Open System Interconnection (OSI) specifications provides the OSI reference model of a seven layer protocol suite for internet traffic. See FOSS, Open Source, OSI Model

OSI Model - The OSI seven layer reference model is a protocol suite for the Internet. The OSI specifications were conceived and implemented by two international standards organizations: ISO and ITU. See Internet, ISO, ITU, Packet, Protocol, OSI

OSS - Operational Support System, used in the telecom sector to describe the internal service provisioning operations of an enterprise telecom network. OSS refers to internal network assets as well as design, construction and maintenance activities for the network. See BSS, Telecom

Outpatient - A patient who receives health care in an clinic, hospital or similar setting but the care does not involve an overnight stay. See Ambulatory Care, Inpatient, Patient

Overfitting - In statistical regression analysis overfitting yields overly optimistic model results by "fitting" idiosyncratic characteristics of the sample at hand. "Findings" appear in an overfitted model at a rate that does not match a random population sample and hence will not replicate.

OWL - Web ontology language, referring to a family of knowledge representation languages for authoring ontologies endorsed by W3C. Characterised by formal semantics, OWL has attracted academic, medical and commercial interest. See Metadata, Ontology, RDF, Semantics, W3C


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	Health Informatics Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z OASIS - The Organization for the Advancement of Structured Information Standards is a global consortium that drives the development, convergence and adoption of e-business and web service standards. Like many bodies producing open standards, OASIS has a patent disclosure policy requiring participants to disclose intent to apply for software patents for technologies under consideration in the standard. However, this policy does not fully protect the public from exploitation of the open process for the preemptive development of a "standard" which confers a monopoly license position. See FOSS, UDDI OBR - Observation request segment of an HL7 message. OBX - Observation result segment of an HL7 message. OCPRHIO - Orange County Partnership Regional Health Information Organization, awarded an HIE Expansion Grant in 2011 by Cal eConnect. See Cal eConnect OCR - [1] Office for Civil Rights at HHS. [2] Optical Character Recognition OHT - Open Health Tools. See OpenEMPI, SBCCDE OID - Object Identifiers (OIDs) consist of a node in a hierarchically-assigned namespace, formally defined using the ASN.1 X.690 standard. In computer security, OIDs name object types in X.509 certificates. See X.509 OIG - Office of the Inspector General at HHS. See HHS OMB - Office of Management and Budget at the White House. See CBO, GAO Top of Page OMG - [1] Object Management Group, a professional standards development organization (SDO) formed to develop enterprise integration standards. [2] TXT for Oh My Gosh! See HSSP, SDO, TXT Onboarding - A formal business process with specific validation and testing activities that an applicant must pass in order to become a participant in the eHealth Exchange (formerly known as the Nationwide Health Information Network). See Healtheway, NwHIN, ONC ONC - ("onk" or "oh-enn-sea") Office of the National Coordinator for Health Information Technology at the U.S. Department of Health and Human Services. See HHS, NwHIN, Onboarding, S&I, SHARP ONCHIT - See ONC Ontology - In computer and information science an ontology is a formal representation of knowledge created by establishing precise definitions of concepts within a specific domain, and by organizing the relationships between the concepts. See Concept, Semantics, Taxonomy, Terminology OODA - ("OOO-dah") Observe Orient Decide Act, generally referred to as the OODA loop. The OODA loop originated in military strategy (specifically USAF fighter pilot strategy) but is now both a strategic and tactical operations algorithm routinely applied to many domains, such as competitive sports and business operations. See USAF OpenEHR - ("open-air") International not-for-profit Foundation based in Australia and Europe working towards interoperable, life-long electronic health records. Top of Page OpenEMed - An open source software toolkit, OpenEMed is a set of healthcare information service components built around the OMG distributed object specifications and HL7 data standards. See HL7, OMG OpenEMPI - An open source Master Person Index software project. The 1.0 version of Open eMPI was donated in 2008 by CHCF to OHT. OpenEMPI is an active software project as the Client Registry service in the OpenHIE system architecture. In 2014 OpenEMPI expects to release version 3.0 of the software. See CHCF, Client Registry, MPI, OHT, OpenHIE OpenHIE - Open Health Information Exchange (OpenHIE) is a global, open-source collaboration focused on strengthening national health information exchanges for underserved countries. OpenHIE emerged from the HIPPP initiative funded by PEPFAR. The partnership was started to support development of the Rwanda Health Enterprise Architecture (RHEA) Project. Many contributors to OpenHIE are also original volunteers and contributors to OpenMRS. See HIPPP, Informatics, OpenEMPI, OpenMRS, Open Source, PEPFAR, RHEA OpenMRS - Open Medical Records System, an open source enterprise electronic medical record system platform based around a core concept dictionary. Initiated by Regenstrief Institute for a project in Kenya. See Concept, OpenHIE, Regenstrief Open Source - [1] In production and development open source is a pragmatic methodology that promotes free access to an end product's development process. [2] In software licensing, open source refers to software published under a license that generally allows anyone to make a new version of the software, port it to new operating systems and processor architectures, share it with others or market it. The general aim of the open source license is to let the code be more understandable, modifiable, duplicatable, or simply accessible, while still allowing it to be marketable. See FOSS, GPL, License, OSI, Red Hat, Source Code OpenVistA - A proprietary VistA-RPMS hybrid enterprise EHR marketed by Medsphere. See CPRS, RPMS, VistA, WorldVistA ORM - Clinical order segment of an HL7 message. ORU - Observation result segment of an HL7 message. OS - Operating System for a computing device. OSHA - Occupational Safety and Health Administration. OSHPD - California Office of Statewide Health Planning and Development. Top of Page OSI - [1] The Open Source Initiative (OSI) is a non-profit organization formed to educate about and advocate for the benefits of open source and to build bridges among different constituencies in the open source community. [2] Open System Interconnection (OSI) specifications provides the OSI reference model of a seven layer protocol suite for internet traffic. See FOSS, Open Source, OSI Model OSI Model - The OSI seven layer reference model is a protocol suite for the Internet. The OSI specifications were conceived and implemented by two international standards organizations: ISO and ITU. See Internet, ISO, ITU, Packet, Protocol, OSI OSS - Operational Support System, used in the telecom sector to describe the internal service provisioning operations of an enterprise telecom network. OSS refers to internal network assets as well as design, construction and maintenance activities for the network. See BSS, Telecom Outpatient - A patient who receives health care in an clinic, hospital or similar setting but the care does not involve an overnight stay. See Ambulatory Care, Inpatient, Patient Overfitting - In statistical regression analysis overfitting yields overly optimistic model results by "fitting" idiosyncratic characteristics of the sample at hand. "Findings" appear in an overfitted model at a rate that does not match a random population sample and hence will not replicate. OWL - Web ontology language, referring to a family of knowledge representation languages for authoring ontologies endorsed by W3C. Characterised by formal semantics, OWL has attracted academic, medical and commercial interest. See Metadata, Ontology, RDF, Semantics, W3C

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Health Informatics Glossary