ogsa-wg

Open Grid Services Architecture WG

Architecture

The Open Grid Forum (OGF) has embraced the Open Grid Services Architecture as the blueprint for standards-based grid computing. 'Open' refers to the process used to develop standards that achieve interoperability. 'Grid' is concerned with the integration, virtualization, and management of services and resources in a distributed, heterogeneous environment. It is 'service-oriented' because it delivers functionality as loosely coupled, interacting services aligned with industry-accepted Web service standards. The 'architecture' defines the components, their organizations and interactions, and the design philosophy used. OGSA-WG is developing the architecture and its constituent specifications and profiles in collaboration with a number of fellow working groups.
o The OGSA® Working Group is one of about 50 groups operating under the auspices of the Open Grid Forum (OGF).
o OGSA is a registered trademark of the OGF.
o The output of the OGSA working group addresses a very wide range of capabilities in the form of an overall architecture and a collection of profiles, which describe how this architecture can be rendered.
o Because of this wide scope, OGSA is sometimes incorrectly assumed to define ALL the work of the OGF.
o OGSA draws on the wide range of activity in the rest of OGF to create profiles that fill in parts of the architecture.
o There is a lot of important activity in the OGF that is outside the scope of OGSA.

OGSA-WG manages an architectural process of OGSA standards by working to collect requirements, evaluate the maturity of specifications, and produce periodic updates to OGSA informational documents and OGSA recommendation profiles.

The scope of the proposed working group is to produce the following documents. All documents are Informational except for OGSA Profiles, which are Recommendations.

* Architecture document and Glossary: The Architecture document identifies the framework, taxonomy, and functionality that should be provided to address use case requirements. The Glossary provides an unambiguous definition of terms used in the Architecture document.

* Service Description documents and Scenario documents: Service Description documents describe each OGSA service in natural language, listing the interfaces and operations defined by each service. Scenario documents demonstrate how these services can implement the use cases, using a combination of natural language and UML. Fellow-WGs may also develop such documents.

* OGSA Roadmap document: The Roadmap document expresses OGSA-WG views on the likely future evolution of OGSA to address unmet requirements and/or respond to technology evolution.

* Guideline documents: Guideline documents outline how to write specific OGSA normative documents. Examples of guideline documents include the OGSA Profile Definition document and the Grid Information/Data Model Guidelines document.

* OGSA Profiles: An OGSA Profile specifies requirements on referenced specifications and other profiles to improve interoperability. A Profile has 'conformance statements' and 'extension points' as specified in the OGSA Profile Definition document.

The OGSA-WG will ensure consistency among OGSA informational documents, OGSA Profiles, and related specifications which are produced by fellow-WGs.

When all planned deliverable documents have been produced, the WG will consult internally and choose its next target based on the WG's priority and any requests from the community.

Title: OGSA Architecture v1.5
Title: OGSA Glossary v1.5
Title: OGSA information modeling architecture 1.0
Title: OGSA WSRF Basic Profile v1.0
Title: OGSA Basic Security Profile 1.0 - Core
Title: OGSA Basic Security Profile 1.0 - Secure Channel
Title: Defining the Grid: A Roadmap for OGSA Standards 1.1
Title: Guidelines for Information Modeling for OGSA Entities 1.0
Title: Execution Environment and Basic Execution Service Model in OGSA Grids 1.0
Title: OGSA EMS Architecture scenarios 1.0
Title: OGSA EMS Architecture 1.0 (pending)
Title: OGSA Glossary v1.6
Title: OGSA EMS Architecture scenarios 1.1
Title: Information-Security Use-Cases for Grid Architectures 1.0
Title: OGSA Basic Security Profile 2.0 - Secure Addressing
Title: OGSA Security Profile 2.0 - Secure SOAP Messaging
Title: OGSA Security Profile 2.0 - Secure Transport
Title: Interoperability testing for OGSA Profile
Title: OGSA workflow community practice
Title: OGSA Service Level Terms community practice

1. Is the scope of the proposed group sufficiently focused?


2. Are the topics that the group plans to address clear and relevant for the Grid research, development, industrial, implementation, and/or application user community?


3. Will the formation of the group foster (consensus-based) work that would not be done otherwise?


4. Do the group's activities overlap inappropriately with those of another OGF group or to a group active in another organization such as IETF or W3C?


5. Are there sufficient interest and expertise in the group's topic, with at least several people willing to expend the effort that is likely to produce significant results over time?


6. Does a base of interested consumers (e.g., application developers, Grid system implementers, industry partners, end-users) appear to exist for the planned work?


7. Does the OGF have a reasonable role to play in the determination of the technology?

Active

The Open Grid Forum (OGF) has embraced the Open Grid Services Architecture as the blueprint for standards-based grid computing. 'Open' refers to the process used to develop standards that achieve interoperability. 'Grid' is concerned with the integration, virtualization, and management of services and resources in a distributed, heterogeneous environment. It is 'service-oriented' because it delivers functionality as loosely coupled, interacting services aligned with industry-accepted Web service standards. The 'architecture' defines the components, their organizations and interactions, and the design philosophy used. OGSA-WG is developing the architecture and its constituent specifications and profiles in collaboration with a number of fellow working groups. o The OGSA® Working Group is one of about 50 groups operating under the auspices of the Open Grid Forum (OGF). o OGSA is a registered trademark of the OGF. o The output of the OGSA working group addresses a very wide range of capabilities in the form of an overall architecture and a collection of profiles, which describe how this architecture can be rendered. o Because of this wide scope, OGSA is sometimes incorrectly assumed to define ALL the work of the OGF. o OGSA draws on the wide range of activity in the rest of OGF to create profiles that fill in parts of the architecture. o There is a lot of important activity in the OGF that is outside the scope of OGSA.