Open Grid Services Architecture (OGSA) describes a
service-oriented architecture for a
grid computing
Grid computing is the use of widely distributed computer resources to reach a common goal. A computing grid can be thought of as a distributed system with non-interactive workloads that involve many files. Grid computing is distinguished from co ...
environment for business and scientific use.
It was developed within the
Open Grid Forum
The Open Grid Forum (OGF) is a community of users, developers, and vendors for standardization of grid computing. It was formed in 2006 in a merger of the Global Grid Forum and the Enterprise Grid Alliance.
The OGF models its process on the In ...
, which was called the Global Grid Forum (GGF) at the time, around 2002 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
The Web Services Description Language (WSDL ) is an XML-based interface description language that is used for describing the functionality offered by a web service. The acronym is also used for any specific WSDL description of a web service (also ...
(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 a Web services architecture, specifically designed to support grid requirements.
The concept of OGSA is derived from work presented in the 2002
Globus Alliance paper "The Physiology of the Grid" by
Ian Foster,
Carl Kesselman
Carl Kesselman is an American computer scientist specializing in grid computing technologies.
This term was developed by him and professor Ian Foster in the book ''The Grid: Blueprint for a New Computing Infrastructure''. He and Foster are winner ...
, Jeffrey M. Nick, and Steven Tuecke.
It was developed by GGF working groups which resulted in a document, entitled ''The Open Grid Services Architecture, Version 1.5'' in 2006.
The GGF published some use case scenarios.
According to the "Defining the Grid: A Roadmap for OGSA Standards v 1.0", OGSA is:
* An architectural process in which the GGF's OGSA Working Group collects requirements and maintains a set of informational documents that describe the architecture;
* A set of normative specifications and
profiles that document the precise requirements for a conforming hardware or software component;
* 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 these capabilities:
* Infrastructure services
* Execution Management services
* Data services
* Resource Management services
* Security services
* Self-management services
* Information services
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".
Open Grid Services Architecture Glossary of Terms, Version 1.5
/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
WS-Management (Web Services-Management) is a DMTF open standard defining a SOAP-based protocol for the management of servers, devices, applications and various Web services. WS-Management provides a common way for systems to access and exchange ma ...
.
References
External links
* {{official website, http://forge.gridforum.org/sf/projects/ogsa-wg/
OGSA WSRF Basic Profile, Version 1.0
Grid computing