Open Grid Services Architecture: Difference between revisions

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{{primary sources|date=September 2011}}

{{buzzwords|date=October 2020}}

'''Open Grid Services Architecture''' ('''OGSA''') describes a [[service-oriented architecture]] for a [[grid computing]] environment for business and scientific use.

It was developed within the [[Open Grid Forum]], which was called the Global Grid Forum (GGF) at the time, around 20042002 to 2006.

==Description==

OGSA is a distributed interaction and computing architecture based around services, assuring interoperability on heterogeneous systems so that different types of resources can communicate and share information. OGSA is based on several other [[Web service]] technologies, such as the [[Web Services Description Language]] (WSDL) and the [[Simple Object Access Protocol]] (SOAP), but it aims to be largely independent of transport-level handling of data.

OGSA has been described as a refinement of the emerginga Web Servicesservices architecture, specifically designed to support Gridgrid requirements.<ref>[http://www.nesc.ac.uk/teams/OGSAanalysisDennisGannon.pdf An Analysis of The Open Grid Services Architecture]{{Dead link|date=August 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

OGSAThe wasconcept adoptedof byOGSA ais numberderived offrom gridwork projectspresented includingin the [[2002 Globus Alliance]]. Conceptually, OGSA was first suggested in a paper by [[Ian Foster]] called "The Physiology of the Grid", and later developed by GGF[[Ian workingFoster groups(computer whichscientist)|Ian resultedFoster]], in[[Carl a GGF information documentKesselman]], entitledJeffrey ''TheM. Open Grid Services ArchitectureNick, Versionand 1.5'' inSteven 2006Tuecke.<ref name="GFD80">{{Cite web |title= The Physiology of the Grid: An Open Grid Services Architecture, Versionfor 1.5Distributed Systems Integration |author= [[Ian Foster (computer scientist)|Ian Foster]], H.[[Carl KishimotoKesselman]], andJeffrey AM. SavvaNick, editorsand Steven Tuecke |publisherdate= Open23 GridJune Forum2002 |datepublisher= 24Globus July 2006Alliance |url= http://www.ogfglobus.org/documentsalliance/GFD.80publications/papers/ogsa.pdf |accessdate= 28 July 2013 }}</ref>

It was developed by GGF working groups which resulted in a document, entitled ''The Open Grid Services Architecture, Version 1.5'' in 2006.<ref name="GFD80">{{Cite web |author= |date=24 July 2006 |editor-last=Foster |editor-first=I. |editor2-last=Kishimoto |editor2-first=H. |editor3-last=Savva |editor3-first=A. |title=The Open Grid Services Architecture, Version 1.5 |url=http://www.ogf.org/documents/GFD.80.pdf |accessdate=28 July 2013 |publisher=Open Grid Forum}}</ref>

The GGF published some use case scenarios.<ref>[http://www.ogf.org/documents/GFD.29.pdf OGSA Tier 1 Use Case Draft Document]</ref>

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* Software components that adhere to the OGSA specifications and profiles, enabling deployment of grid solutions that are interoperable even though they may be based on implementations from multiple sources.

"The Open Grid Services Architecture, Version 1.5" described an OGSA grid in terms of the followingthese capabilities:<ref>[http://www.ogf.org/documents/GFD.80.pdf Thename="GFD80" Open Grid Services Architecture, Version 1.5]</ref>

* Infrastructure services

* Execution Management services

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In late 2006 an updated version of OGSA and several associated documents were published, including the first of several planned normative documents, "Open Grid Services Architecture Glossary of Terms, Version 1.5".<ref>[http://www.ogf.org/documents/GFD.81.pdf Open Grid Services Architecture Glossary of Terms, Version 1.5]</ref>

The concept of OGSA is derived from work presented in the paper "The Physiology of the Grid" by [[Ian Foster]], [[Carl Kesselman]], Jeffrey M. Nick, and Steven Tuecke.<ref>[http://www.globus.org/alliance/publications/papers/ogsa.pdf The Physiology of the Grid]</ref>

The [[Open Grid Services Infrastructure]] (OGSI) is related to OGSA, as it was originally intended to form the basic “plumbing” layer for OGSA. It was superseded by [[Web Services Resource Framework]] (WSRF) and [[WS-Management]].