1. Summary of Grid Portal Architecture Workshop March 6 2003 Tokyo GGF7
PTLIU Laboratory for Community Grids
Geoffrey Fox
Computer Science, Informatics, Physics
Indiana University, Bloomington IN 47404

2. Grid Portal Architecture Workshop
Organized by Dennis Gannon, Geoffrey Fox and Mary Thomas
These are co-chairs of GCE working group – this topic is a rather focused subset of GCE mandate
We have a pending Grid Information document describing “full” GCE activities – See C&C:P&E special issue of 28 papers which provided “data” for this summary
8 am to 1.50 pm Thursday March , 50 attendees
9 Presentations followed by discussion
Talks were asked to address a set of questions prepared ahead of time
This differentiated workshop from earlier meetings with “project updates”
Appropriate because broad area reasonably well covered
Final discussion agreed to produce a Grid Forum Information Document entitled Portal Component Architecture

3. Source of Overview of Grid Computing Environments GGF Information Document
Last Half of 2001: Call from GCE RG for Papers for Journal special issues – 28 papers submitted and reviewed
Published in Concurrency and Computation: Practice and Experience Vol. 14, Grid Computing Environments Special Issue 13-15, Fall 2002
Augmented by chapters (about 14) in Fran Berman, Geoffrey Fox and Tony Hey, ‘Grid Computing: Making the Global Infrastructure a Reality’, ISBN , John Wiley & Sons Ltd, Chichester, See
Other key papers which we knew about

4. Questions Addressed by Speakers
Are the current portal frameworks, such as Jetspeed, sufficient for all our requirements?
Is the portlet model the right one for Grid applications?
When is the Web “pull” model insufficient for Grid applications?
What Grid services are needed to make Grid portals useful?
Are the proposed OGSA core Grid services appropriate and useable by Grid portals? What other Grid middleware implications are there for Grid portal interoperability?
What are the requirements for a messaging and notification model to be used by Grid portals?
How do we build a GridShell? How does one create a user’s Grid Context?
How do we design a Grid portal architecture that best supports collaboration?
Two important standard have emerged: WSIA (Web Services for Interactive Applications) and WSRP (Web Services for Remote Portals). Are these sufficient for the requirements of Grid Applications?

5. Typical Jetspeed Portal
Each Tab displays multiple Portal Component Each user interface component maps to a Grid Service

6. Workshop Speakers Introduction and Workshop Charge Dennis Gannon
Overview of GCE and Grid Portal Issues Geoffrey Fox
Background: OGSA, WSIA and WSRP and Grid Contexts Dennis Gannon
GridLab Portal Technology Michael Russell
GridPort Technology Mary Thomas
The CHEF Portal Charles Severance
The Grid Portal Generator Toyotaro Suzumura
GENIUS and EnginFrame: GRID Portal across Research and Industry
Roberto Barbera and Andrea Rodolico
Mississippi Portal Tom Haupt

7. Portal Component Architecture Document
GGF Information Document based on workshop
Overview/motivation
Portal Component Architecture (examples, general issues)
Using Component-based Portals Today
Futures of Portal Component Paradigms
New paradigms
Enhancing current paradigms
Portal Component Design issues
Security Considerations
Appendix: Examples of use of current Component-based Portals
Draft should be completed by GGF8 where it be discussed in a GCE meeting