Group Chair(s): Jim Pruyne, Wolfgang Ziegler

Group Secretary(s): Philipp Wieder

Group Email: graap-wg@ogf.org (Subscribe) (Archive by date)

The goal of the GRAAP Working Group is to produce a set of specifications and supporting documents which describe methods and means to establish Service Level Agreements between different entities in a distributed environment. The WS-Agreement Specification V1.0, a Web Services protocol to establish agreements between two services, has recently (May 2007) been published as an OGF Proposed Recommendation (see GFD.107). Currently, the groups focuses on negotition and renegotiation of SLAs using WS-Agreement negotiato and usage scenarios.

Within the scope of the GRAAP-WG are the definition, the negotiation, and the management of Service Level Agreements (SLAs). The group especially focuses on the usage of SLAs and WS-Agreement, an SLA format and protocol specified by the GRAAP-WG, in distributed systems, Grids and Clouds. In the context of OGF, the relation to the Open Grid Services Architecture (OGSA) is of special importance.

The group is about to finish the final draft of the WS-Agreement Experience Document, which describes the interoperability testing of different WS-Agreement implementations (to evaluate the specification and to evolve from an OGF Proposed Recommendation to an OGF Recommendation). The focus of GRAAP is now on the discussion and preparation of the definition of an add-on to WS-Agreement v1.0 extending language and protocol to allow negotiation and re-negotiation of SLAs using WS-Agreement.

Community request: In case you have implemented WS-Agreement, we would appreciate if you could invest the time and fill in this questionnaire. Thank you.

Please find more information regarding the following topics on the respective pages of the GRAAP Wiki:
* Events related to WS-Agreement, GRAAP, and SLAs
* Existing implementations using WS-Agreement
* A discussion on interoperability between different WS-Agreement implementations
* A list of publications related to WS-Agreement and SLAs
* A discussion on SLA re-negotiation

View Group Charter

Group's Gridforge Project