[ogsa-wg] OGSA-MWS-BOF at GGF14 on Tues June 28, noon-1:30

[Dave Berry]

Marty,

I don't know how much debate you want on the list before the BOF itself, but could you perhaps answer two questions to help set the context?

1.  Please could you clarify the status of WS-Transfer, WS-Eventing and WS-Enumeration in the terms of the OGSA Profile template?  I.e. have they been submitted to an SDO, are they draft or evolving, etc.?

2.  I can see that WS-Transfer specifies some of the functionality of WSRF and WS-Eventing is largely equivalent to WS-BaseNotification, but what has WS-Enumeration to do with this?  From a brief reading, it seems to specify functionality that is independent of either stack.  

Dave.


-----Original Message-----
From: owner-ogsa-wg at ggf.org [mailto:owner-ogsa-wg at ggf.org] On Behalf Of Marty Humphrey
Sent: 21 June 2005 15:28
To: 'Ogsa-Wg'
Subject: RE: [ogsa-wg] OGSA-MWS-BOF at GGF14 on Tues June 28, noon-1:30


Hi Ian et. al., 

A very good question! ("can you define the goals of the BOF more precisely other than "not WSRF"?) I sent this email in part to hear from the community how "broad" they might like it to be. That is, we're being flexible. If someone wants to talk about one of these specific topics, we will certainly try our best to accommodate. 

Note that by default I believe the discussions will center around WS-Transfer, WS-Enumeration, WS-Eventing, et. al. I will talk about my team's use of WS-Transfer, WS-Enumeration, and WS-Eventing. I think we're in a very good position to discuss the pros and cons of these specs as compared with WSRF (as our project has implemented/used both). 

Let me answer the question in a different way. GGF Chair Mark Linesch said
recently: "Our approach with the OGSA architecture along with our collaborative work on OGSA profiles is to: (1) describe 'the most traveled paths through the forest' rather than to dictate that there is only one path; and (2) to continue to highlight that multiple, overlapping paths may not be in the interests of the industry over time"
(http://news.taborcommunications.com/msgget.jsp?mid=403500&xsl=story.xsl)
Simply, we believe that there has been sufficient "hallway discussions" on BOTH (1) and (2) that it makes good sense to gather people to discuss BOTH of these topics in a realistic and productive way. 

- Marty

Marty Humphrey
Assistant Professor
Department of Computer Science
University of Virginia


________________________________________
From: Ian Foster [mailto:foster at mcs.anl.gov] 
Sent: Tuesday, June 21, 2005 9:54 AM
To: Marty Humphrey; 'Ogsa-Wg'
Cc: 'Marty Humphrey'
Subject: Re: [ogsa-wg] OGSA-MWS-BOF at GGF14 on Tues June 28, noon-1:30

Marty, Steven:

It is of course feasible, in principle, to define many different profiles for OGSA. E.g., one could build one on WS-Transfer and friends, one could build one that uses a different construct than the WS-Addressing EPR to address things, one could define one that uses JINI mechanisms, one could define one that uses CORBA, one could define one that renames all of the current WSRF and WS-Notification calls to be slightly different (oh wait, that's the first in the list (-: ), etc.

Given the wide variety of possible alternative profiles, it would be helpful for those like me who are considering attending the BOF to know what more specifically what the goal of this work is going to be. The name doesn't provide any information, other than to imply, perhaps, that the interfaces on which the WSRF profile builds are not in some manner "minimal" and/or "simple." I.e., can you define the goals of the BOF more precisely other than "not WSRF"?

Regards -- Ian.

At 09:11 AM 6/21/2005 -0400, Marty Humphrey wrote:

Folks,

There have been a number of informal conversations lately about the feasibility/value/implications of a possible non-WSRF-based profile for OGSA. 

To bring all interested parties together at the same time, a BOF has been scheduled for Tuesday June 28 noon-1:30 (unfortunately at the same time as the EGA session, but there were no good times available). The agenda is still being finalized, but we expect to broadly discuss the pros/cons of such an effort, and, if the BOF attendees decide that such an effort would be valuable, produce a concrete plan for the formation of a Working Group.

Here is the information that Steven Newhouse provided for the GGF
organizers:

"A BOF meeting to discuss the creation of a WG to define an OGSA Basic Profile that builds upon a minimal set of simple web services. The output of the group would be a document, similar in nature to the OGSA WSRF Basic Profile that would allow OGSA services to be rendered using an alternative set of WS specifications." 

I hope you can attend this (hopefully) productive and constructive session!

-- Marty and Steven

Marty Humphrey
Assistant Professor
Department of Computer Science
University of Virginia _______________________________________________________________
Ian Foster                    www.mcs.anl.gov/~foster
Math & Computer Science Div.  Dept of Computer Science
Argonne National Laboratory   The University of Chicago    
Argonne, IL 60439, U.S.A.     Chicago, IL 60637, U.S.A.
Tel: 630 252 4619             Fax: 630 252 1997
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