1. Update to the Community GGF16 - Athens
Abstract
Grid computing provides functionalities to support the sharing of heterogeneous distributed computational and data resources. The Global Grid Forum (GGF) is a community of users, developers and vendors that forms the focus for a global standardization effort for grid computing. Central to this is the Open Grid Services Architecture (OGSA), and its associated specifications, which define consistent interfaces through web services to components of a grid infrastructure. Both the web service and grid communities stand to benefit from the provision of consistent and agreed web service interfaces for data resources and the systems that manage them. (optional in italics) This presentation describes, motivates and presents the context for the results of the GGF Data Access and Integration Services Working Group (DAIS-WG), which is defining data access and integration services for OGSA. These services are defined in a family of specifications: WS-DAI, which specifies a collection of generic data resource properties and messages; and WS-DAIR and WS-DAIX, which specialise WS-DAI for use with relational and XML data resources, respectively. The WS-DAI specifications can be applied in regular web services environments or as part of a grid fabric.
Dave Pearson
DAIS co-Chair

2. DAIS Session Agenda Update on activities Dave Pearson
Community feedback on submitted documents Norman Paton
Progress Report on implementations Steve Lynden
Discussion on Future Activities All

3. Quiz Question What is it? Answer: The set of DAIS specifications
The gestation period was 3years 10months?
54 people were present at its conception
It involved over 80,000 miles of travel to 12 cities in 8 different countries for necessary intercourse to take place
Eventually not one but three were delivered
Answer: The set of DAIS specifications

4. DAIS Timeline through to GGF14
- GGF 4, Toronto, Feb ‘02
- GGF 5, Edinburgh, Jul ‘02
- GGF 6, Chicago, Oct ‘03
- GGF 7, Tokyo, Mar ‘03
- GGF 8, Seattle, Jun ‘03
- GGF 9, Chicago, Oct ‘03
- GGF 10, Berlin, Mar ‘04
- GGF 11, Honolulu, Jun ‘04
- GGF 12, Brussels, Sep ‘04
- GGF 13, Seoul, Mar ‘05
- GGF 14, Chicago, Jun ‘05
DAIS BoF –
OGSA
Near complete DAIS specs
(WS-DAI,WS-DAIR,WS-DAIX)
Initial Object Realization
DAIS spec which OGSA-DAI is based on -
Demise of OGSI -
Grid Data Service Spec -
Refactoring spec into core + specializations: -
XML, File, Relational, Transformations.
OGSA Data Services document.
Renaming of specs WS-DAI, WS-DAIR -
WS-DAIX. Mappings document.
Salient Events
GGFs
Submission of WS-DAI,WS-DAIR, WS-DAIX specs pending

5. Since GGF14 One session held at GGF15 Since then:
Intermittent telcons
Issue resolutions
Ongoing minor corrections
Recommendations submitted on 20th December 2005
WS-DAI
WS-DAIR
WS-DAIX
Now in public comment
Please read
Provide feedback
I’ve read it
I do/don’t understand it, it’s great/rubbish/irrelevant, I found these errors
I’m interested in doing an implementation

6. Levels of Effort Involved
The few people who really made it happen:
Simon Laws
Amy Krause
Mario Antonioletti
Norman Paton
Susan Malaika
With help and disruption from others
No of active contributors
2002
2003
2004
2005
2006

7. Discussion on Future Activities
Proposed topics
RDF Isao Kojima
Continuous Queries Dieter Gawlick
Others:
The ‘I’ in DAIS
Object realisation has been proposed previously

8. Current DAIS Status Recommendations submitted on 20th December 2005
WS-DAI
WS-DAIR
WS-DAIX
Now in public comment
Please read
Provide feedback
I’ve read it
I do/don’t understand it, it’s great/rubbish/irrelevant, I found these errors
I’m interested in doing an implementation
Possible future activities
More realisations
RDF – BOF tomorrow
Object & Files – subject to demonstrated demand & commitment
Continuous Query – possible RG subject to interest

9. Reminder
BOF: DAIS-WG re-charter to add RDF specialisation
When: Thursday 10:30 – 12:00
Where: Macedonia B
Facilitated by: Isao Kojima