A semantic grid is an approach to
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 ...
in which information, computing resources and services are described using the semantic data model. In this model, the data and metadata are expressed through facts (small sentences), becoming directly understandable for humans. This makes it easier for resources to be discovered and combined automatically to create
virtual organizations (VOs). The descriptions constitute
metadata and are typically represented using the technologies of the
Semantic Web, such as the
Resource Description Framework The Resource Description Framework (RDF) is a World Wide Web Consortium (W3C) standard originally designed as a data model for metadata. It has come to be used as a general method for description and exchange of graph data. RDF provides a variety of ...
(RDF).
Like the Semantic Web, the semantic grid can be defined as
"an extension of the current grid in which information and services are given well-defined meaning, better enabling computers and people to work in cooperation."
This notion of the semantic grid was first articulated in the context of
e-Science
E-Science or eScience is computationally intensive science that is carried out in highly distributed network environments, or science that uses immense data sets that require grid computing; the term sometimes includes technologies that enable dis ...
, observing that such an approach is necessary to achieve a high degree of easy-to-use and seamless automation, enabling flexible collaborations and computations on a global scale.
The use of semantic web and other knowledge technologies in grid applications are sometimes described as the knowledge grid.
Semantic grid extends this by also applying these technologies within the grid
middleware
Middleware is a type of computer software that provides services to software applications beyond those available from the operating system. It can be described as "software glue".
Middleware makes it easier for software developers to implement c ...
.
Some semantic grid activities are coordinated through the Semantic Grid Research Group of the
Global 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 ...
.
Notes
See also
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Business Intelligence 2.0
*
LSID
Life Science Identifiers are a way to name and locate pieces of information on the web. Essentially, an LSID is a unique identifier for some data, and the LSID protocol specifies a standard way to locate the data (as well as a standard way of descr ...
*
Semantic Web Rule Language
*
Semantic Grid System - A
CSS
Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML). CSS is a cornerstone t ...
grid framewor
External links
ONTOGRID: EU-funded research project for enabling semantic grid applicationsSemantic Grid Dagstuhl SeminarA semantic grid oriented to e-tourism
Grid computing
Semantic Web
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