OGSA-Workflow OGSA-WG.

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Presentation transcript:

OGSA-Workflow OGSA-WG

OGF IPR Policies Apply “I acknowledge that participation in this meeting is subject to the OGF Intellectual Property Policy.” Intellectual Property Notices Note Well: All statements related to the activities of the OGF and addressed to the OGF are subject to all provisions of Appendix B of GFD-C.1, which grants to the OGF and its participants certain licenses and rights in such statements. Such statements include verbal statements in OGF meetings, as well as written and electronic communications made at any time or place, which are addressed to: the OGF plenary session, any OGF working group or portion thereof, the OGF Board of Directors, the GFSG, or any member thereof on behalf of the OGF, the ADCOM, or any member thereof on behalf of the ADCOM, any OGF mailing list, including any group list, or any other list functioning under OGF auspices, the OGF Editor or the document authoring and review process Statements made outside of a OGF meeting, mailing list or other function, that are clearly not intended to be input to an OGF activity, group or function, are not subject to these provisions. Excerpt from Appendix B of GFD-C.1: ”Where the OGF knows of rights, or claimed rights, the OGF secretariat shall attempt to obtain from the claimant of such rights, a written assurance that upon approval by the GFSG of the relevant OGF document(s), any party will be able to obtain the right to implement, use and distribute the technology or works when implementing, using or distributing technology based upon the specific specification(s) under openly specified, reasonable, non-discriminatory terms. The working group or research group proposing the use of the technology with respect to which the proprietary rights are claimed may assist the OGF secretariat in this effort. The results of this procedure shall not affect advancement of document, except that the GFSG may defer approval where a delay may facilitate the obtaining of such assurances. The results will, however, be recorded by the OGF Secretariat, and made available. The GFSG may also direct that a summary of the results be included in any GFD published containing the specification.” OGF Intellectual Property Policies are adapted from the IETF Intellectual Property Policies that support the Internet Standards Process. 2

Scoping OGSA-workflow A workflow is a set of jobs and a set of qualifications/constraints A set of Jobs Partition the set into job groups Group qualifications affect all contained jobs Qualifications Data dependencies Execution dependencies Algebraic qualifications Loops If-then-else … Out of Scope 3

Workflow & EMS What is a workflow? “A bunch of jobs”, and A set of (yet unspecified) qualifications Where to locate the workflow processor? BES? No. JobManager? Input to the JobManager? Yes! 4

Workflow & JSDL (1) JSDL 1.x JSDL 2.x Single execution Intrinsic workflow (stage in/out) Can be extended JSDL 2.x Stage in/out are two separate jobs Remove from JSDL 2 spec Supports Job Requirements & Capabilities 5

Workflow & JSDL (2) JobGroups are also Jobs Just more comlex Model jobs and job groups recursive JobGroups can contain Jobs, and JobGroups 6

Workflow & JSDL (3) Qualifications (Dependencies) Model as requirements and capabilities Jobs produce data Announce the data existence in the capabilities Jobs require data Encode this as XQuery requirement Jobs must execute after each other Model as virtual token in requirements and capabilities 7