OGF Documents for Review
New Open Grid Forum Documents Issued for Public Comment
June 28, 2008. Announcement from Greg Newby (OGF Editor)
Several documents are now in public comment. Due to some problems with the Gridforge trackers, we will be extending a few public comment periods to allow sufficient time for comments.
Please consider reading these documents, and providing your comments to the document authors via the link provided for each document.
Brief comments are welcome, not only detailed analysis. Public comments are an excellent indication of community interest and support for a document. A few more document are being processed, and will soon join these.
OGF documents in Public Comment:
Functional Components of Grid Service Provider Authorisation Service Middleware. Author/editor: D. Chadwick. Via OGSA-AuthZ-WG.
This document describes the various components that make up the authorization decision function of a Grid service provider. It looks at the different ways in which the various components can be combined together, and data flows between the components. The GRID service model is compared to the XACMLv2 model, and the differences noted.
On February 28, 2008, as part of OGF22, the Open Grid Forum held Data Movement and Management Workshop. During the day-long meeting, speakers from research and industry described challenges in data movement and management and detailed some possible solutions. The goal was to look for common issues and points for collaboration among the OGF working group and with the Storage Networking Industry Association. The common theme that emerged was the challenge of metadata management. Both research centers and commercial enterprises are flooded with data and are struggling to provide useful access.
Policy for Supporting Grid and e-Science Education and Training. Authors/editors: M. Atkinson, E. Vander Meer. Via ET-CG.
The development of e-Infrastructure, of which grid computing is a fundamental element, will have major economic and social benefits. Online and financial businesses already successfully use grid computing technologies, for instance. New research methods and technologies generate large data sets that need to be shared in order to ensure continued social and scientific research and innovation. Distributed computing can provide an environment for coping with these large data sets and for sharing data across regions. This document introduces the current challenges for grid and e-Science education and training and presents opportunities and existing structures for education and training, as a starting point for further work. It then proposes strategies and policies to provide a supportive framework for e-Infrastructure education and training.
This document specifies a Service Discovery API extension to the Simple API for Grid Applications (SAGA), a high level, application-oriented API for grid application development. This Service Discovery API is motivated by a number of Use Cases collected by the OGF SAGA Research Group in A. Merzky and S. Jha ("A Collection of Use Cases for a Simple API for Grid Applications") and by requirements derived from these Use Cases, as specified in "A Requirements Analysis for a Simple API for Grid Applications." It allows users to find services with minimal prior knowledge.
The GLUE specification is an information model for Grid entities described using natural language and enriched with a graphical representation using UML Class Diagrams. As a conceptual model, it is designed to be independent from the concrete data models adopted for its implementation. Rendering to concrete data models such XML Schema, LDAP Schema and SQL are provided in a separate document.
GLUE v. 2.0 - Reference Realizations to Concrete Data Models. Authors/editors: S. Andreozzi et al. Via GLUE-WG.
This document provides information to the Grid community regarding the realization of the GLUE information model (v.2.0) as XML Schema, SQL Schema and LDAP Schema. The GLUE 2.0 Information model defined in is a conceptual model of Grid entities. In order to be adopted by Grid middlewares, a realization in terms of a concrete data model is needed. Distribution is unlimited. The realizations are derived from the specification document version as available in the GLUE Working Group document repository. The LDAP Schema is an evolving realization.
Use of XACML Request Context to Obtain an Authorisation Decision. Author/editor: D. Chadwick. Via OGSA-AuthZ-WG.
The purpose of this document is to specify a protocol for accessing a Policy Decision Point (PDP) by a Grid Policy Enforcement Point (PEP) in order to obtain access control decisions containing obligations. The protocol is a profile of the SAML2.0 profile of XACML, tailored especially for grid use.
This document defines the Advanced Filter extension — an alternative to the Basic Filter element described in the HPC Basic Profile 1.0 specification. The Basic Filter provides only an 'on' or 'off' approach to returning information about the activities or resources operating within the Basic Execution Service container. The Advanced Filter extension provides more flexibility to the client in returning information from an HPC Basic Profile complaint endpoint.
All documents in public comment may be reached at this Web address:
Public comments are a very important part of the OGF document approval process. Through public comments, documents are given scrutiny by people with a wide range of expertise and interests. Ideally, a OGF document will be self-contained, relying only on the other documents and standards it cites to be clear and useful. Public comments of any type are welcomed, from small editorial comments to broader comments about the scope or merit of the proposed document. The simple act of reading a document and providing a public comment that you read it and found it suitable for publication is very useful, and provides valuable feedback to the document authors.
[Adapted from the June 28, 2008 wg-all mailing list announcement]
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