[ogsa-wg] Paper proposing "evolutionary vertical design efforts"

[Maguire_Tom at emc.com]

I appreciate and agree with the perspective that suggests that OGSA
functionality be profiled using existing agreed upon specifications.
Are you suggesting WS-Security, WS-Trust, WS-SecureConversation, and
WS-ReliableMessaging as those common, agreed upon, non-controversial
specifications?  Some of these are at Standard (WS-Security), some are
at committee draft (WS-ReliableMessaging) and some of them are at editor
drafts (WS-Trust, WS-SecureConversation).  The GGF guidelines for OGSA
Profile Definition (GFD-I.59) would require that a profile based on
these specifications be classified as an Informational Profile (given
the current state of the specifications).  Further I would like to point
out that the normative thorn in the side here continues to be WS-Policy.
 

Thanks, 
Tom 

Mobile: +1-845-729-4806


 


________________________________

	From: owner-ogsa-wg at ggf.org [mailto:owner-ogsa-wg at ggf.org] On
Behalf Of Marvin Theimer
	Sent: Thursday, February 16, 2006 8:45 AM
	To: ogsa-wg at ggf.org
	Cc: Marvin Theimer; Savas Parastatidis; Tony Hey; Marty
Humphrey; gcf at grids.ucs.indiana.edu
	Subject: [ogsa-wg] Paper proposing "evolutionary vertical design
efforts"
	
	

	Enclosed is a paper that advocates an additional set of
activities that the authors believe that the OGSA working groups should
engage in.

	 

	Broadly speaking, the OGSA and related working groups are
already doing a bunch of important things:

	*         There is broad exploration of the big picture,
including enumeration of use cases, taxonomy of areas, identification of
research issues, etc.

	*         There is work going on in each of the horizontal areas
that have been identified, such as EMS, data services, etc.

	*         There is working going around individual
specifications, such as BES, JSDL, etc.

	 

	Given that individual specifications are beginning to come to
fruition, the authors believe it is time to also start defining
"vertical profiles" that precisely describe how groups of individual
specifications should be employed to implement specific use cases in an
interoperable manner.  The authors also believe that the process of
defining these profiles offers an opportunity to "close the design loop"
by relating the various on-going protocol and standards efforts back to
the use cases in a very concrete manner.  This provides an end-to-end
setting in which to identify holes and issues that might require
additional protocols and/or (incremental) changes to existing protocols.
The paper introduces both the general notion of doing focused vertical
"design efforts" and then focuses on a specific vertical design effort,
namely a minimal HPC design.  

	 

	The paper derives a specific HPC design in a "first principles"
manner since the authors believe that this increases the chances of
identifying issues.  As a consequence, existing specifications and the
activities of existing working groups are not mentioned and this paper
is not an attempt to actually define a specifications profile.  Also,
the absence of references to existing work is not meant to imply that
such work is in any way irrelevant or inappropriate.  The paper should
be viewed as a first abstract attempt to propose a new kind of activity
within OGSA.  The expectation is that future open discussions and
publications will explore the concrete details of such a proposal.

	 

	This paper was recently sent to a few key individuals in order
to get feedback from them before submitting it to the wider GGF
community.  Unfortunately that process took longer than intended and
some members of the community may have already seen a copy of the paper
without knowing the context within it was written.  This email should
hopefully dispel any misconceptions that may have occurred.

	 

	For those people who will be around on for the F2F meetings on
Friday, Marvin Theimer will be giving a talk on the contents of this
paper at a time and place to be announced.

	 

	Marvin Theimer, Savas Parastatidis, Tony Hey, Marty Humphrey,
Geoffrey Fox

	 

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