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Multi-institutional Infrastructures for e-Science
by Laurence Field 13 Jul '07

13 Jul '07

As input into the discussion on Friday, I have tried to give a description of the main problem domain which we are trying to address. After this description, I have tried to define what we understand by site, service, VO and resource based on our experience within this problem domain. Problem Description: Universities and research institutes are real organizations that have computing centers. Each organization is autonomous and have their own, security infrastructure, policies, systems etc. and are ultimately responsible for their resources. Scientists from different institutions collaborate on specific research topics and they would like to use the resources available to them. The difficulties faced by the collaboration is that each organization where the resources are located have different, security infrastructures, policies, systems etc. To solve this problem the security infrastructures, policies, systems need to be generalized. A common security model is adopted where usage of resources at an organization is dependent on the collaboration to which the user is participating. Types of systems are also generalized so that the user does not have to understand the details of different implementations that organizations have. An interface is required at the organizational boundary that maps the generalized system to the organizational specific security model and the local system. Site: A site represents the real organization, eg Universities and Research Institutes which are administrative domains. It is usually a physical location where the resource and system administration team can be found. They have their own polices and identity and exist independently of other sites. Virtual Organization: A virtual organization represents the collaboration, a group of scientist working together for a specific topic. Within this virtual organization there may be sub groups and different roles. Virtual organizations also have there own policies and exist independently. Members of the VO do not have to belong to any organization which provides resources. Service: The service is the interface at the site boundary that maps from a generic grid interface to the local system. As the service provides the interface between the grid and a local system, there is a relationship between the service and the site. In addition there is also a relationship between the service and the virtual organization. Services also have to ensure the adherence to agreed common polices, eg access logs, accounting and auditing etc. Resource: A resource is the functionality that the user would like to use. As the resource is local to the site, there is a relationship between the resource and the site. As the service gives access to the resource there is also a relationship between a resource and a service.

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Joint RMWG & GLUE WG Meeting Notes - 13th July 2007
by Strong, Paul 13 Jul '07

13 Jul '07

Reference Model Working Group Meeting Notes Fri 13th July 2007 Agenda Joint meeting with the GLUE wworking group. Attendees Ellen Stokes Paul Strong Dave Snelling Chris Kantarjiev Laurence Field Sergio Andreozzi Michele Carpenè Marco Canaparo Steven Newhouse Steven Fisher Discussion Laurence described the GLUE Schema 2 context, as per his email (http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting…) and requested feedback as to whether this was in line with the Ref Model and so forth. He noted that it was the concepts rather than the names that were important. The general concensus (Steve, Paul and Dave) was that the Ref Model is fairly high level and abstract, and focused on managability, leaving plenty of latitude for the GLUE group to specialize as needed. The Ref Model in intended as a highly extensible, abstract umbrella model which allows references or mappings to other models. Thus it provides a unified context for a number of complementary, yet incomplete (with regards to context) models, and a basis for specialization, such as GLUE. The discussion then went into how to break down the GLUE problem domain - the appropriate entities and perhaps how they map to the Ref Model. Indeed it became clear that an exercise in mapping this, and especially focusing on the notion of Shares (as per http://forge.ogf.org/sf/go/doc14639?nav=1) would be a very useful exercise for the combined team to undertake. Actions RMWG members to carefully review GLUE 2 Schema - http://forge.ogf.org/sf/go/doc14639?nav=1 Next meeting (20th July) will be an internal meeting to discuss GLUE 2 work. Following meeting (27th July) will be another joint meeting between the GLUE WG and RMWG

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Agenda for Friday's RM Call
by David Snelling 12 Jul '07

12 Jul '07

Folks, After a few weeks off, we will hold our call on Friday. The main item for the agenda is to listen to a summary of the work being done by the GLUE WG and sync up their perspective with our efforts. RM-WG scheduled 13 July 2007 from 15:00 to 16:00 UTC +44-800-085-6481 +1-888-237-8573 Passcode: 2051278 -- Take care: Dr. David Snelling < David . Snelling . UK . Fujitsu . com > Fujitsu Laboratories of Europe Limited Hayes Park Central Hayes End Road Hayes, Middlesex UB4 8FE Reg. No. 4153469 +44-208-606-4649 (Office) +44-7768-807526 (Mobile)

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[Invitation] Info/data modeling (Ellen Stokes) @ 2007-07-12 9am - 10am ()
by Hiro Kishimoto 11 Jul '07

11 Jul '07

glue-wg(a)ogf.org, you are invited to Title: Info/data modeling (Ellen Stokes) Time: 2007-07-12 9am - 10am (Central Time) Where: http://ogsa.glance.net/ Calendar: Description: When: 10-11am EDT, 9-10am CDT, 7-8am PDT, 11pm-midnight JST, 3-4pm UK Dial-in numbers for Thursday: Free: +1-888-452-0308 Intl/Toll: +(210) 234-7446 PIN: 71815 See more information: - https://forge.gridforum.org/sf/go/wiki1477 Screen share service: URL: http://ogsa.glance.net/ Usage: https://forge.gridforum.org/sf/go/wiki1584 Note: ** OGF IPR POLICY APPLIES ** http://www.ogf.org/About/abt_policies.php 1) Early discussion Social study notification - https://forge.gridforum.org/sf/go/wiki1717 Note taker assignment Roll call Agenda bashing 2) the container model doc final review (Ellen Stokes) - https://forge.gridforum.org/sf/go/doc14004 Minutes approval June 28: https://forge.gridforum.org/sf/go/doc14651 Action Item review You can view this event at http://www.google.com/calendar/event?action=VIEW&eid=YTNpNW40dXVicHJrZGhjb2… You are receiving this courtesy email at the account glue-wg(a)ogf.org because you are an attendee of this event. To stop receiving future notifications for this event, decline this event. Alternatively you can sign up for a Google Calendar account at http://www.google.com/calendar/ and control your notification settings for your entire calendar.

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Fw: request time on reference model workgroup agenda for friday july 13
by Ellen Stokes 10 Jul '07

10 Jul '07

details for ref model wg call on Friday July 13 10am-11am central / 5pm-6pm central europe / 4pm-5pm uk US: +1 888 237 8573 pass code 2051278 more dial in numbers are in attached document (same passcode as above) Glance - http://rmwg.glance.net <http://rmwg.glance.net/>, passcode <MMDD> link to rm-wg wiki for materials, agendas, dial-in numbers, etc...http://forge.gridforum.org/sf/wiki/do/viewPage/projects.rm-wg/wiki/Ho… Ellen ----- Forwarded by Ellen Stokes/Austin/IBM on 07/10/2007 11:38 AM ----- David Snelling <david.snelling(a)uk.fujitsu.com> 07/10/2007 09:11 AM To Ellen Stokes/Austin/IBM@IBMUS cc "Strong, Paul" <pstrong(a)ebay.com>, sergio.andreozzi(a)cnaf.infn.it, laurence.field(a)cern.ch Subject Re: request time on reference model workgroup agenda for friday july 13 Paul, Ellen, It's OK with me. Paul? On 10 Jul 2007, at 14:57, Ellen Stokes wrote: > > Paul or David, > > The glue workgroup would like to set of time on this friday's ref > model call (July 13) to have a dialog with your group on the model > relationship of service, resource, and site. > > Is this possible? If not, let us know which ref model call this > can be put on the agenda. > > Thanks. > Ellen -- Take care: Dr. David Snelling < David . Snelling . UK . Fujitsu . com > Fujitsu Laboratories of Europe Limited Hayes Park Central Hayes End Road Hayes, Middlesex UB4 8FE Reg. No. 4153469 +44-208-606-4649 (Office) +44-7768-807526 (Mobile)

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Phone Conference
by Laurence Field 10 Jul '07

10 Jul '07

Here are the details for the next Glue Schema meeting. Date: Tuesday 10 July 2007 Time: 15:00 Title: Glue Schema Organiser: Laurence Field Dial: +41 22 767 7000 and ask to be connected to "Glue Schema Meeting". Draft Agenda: Site and Service Use Cases Site and Service Model CE Use Cases CE Info Model SE Use Cases SE Info Model

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Meeting Minutes
by Laurence Field 10 Jul '07

10 Jul '07

Attendance: Steve Fisher Balazs Konya Sergio Andreozzi Ellen Stokes Felix Ehm Laurence Field Stephen Burke Agenda Bashing: Discuss the Glue Session for OGF 21 We now have the ability to use Glance in our meetings, thanks to Hiro. Presentation of the Doc: Has be update to conform to the OGF template. Discussion on the Computing Element. Steve Fisher, Stephen Burke, Ellen and Laurence are not in favour. Steve suggest that there could be a many to many relationships between sites (organizations). There seems to be a general issue requiring a definition of the site, service, resource entities and relationships. Ellen suggests taking a look at the UML and description of CIM to help in the understanding. Action: Join the Reference Model phone call to discuss this issue further. Sergio will be going to the DMFT meeting and can have some more discussions with them. Use Cases: Stephen Burke asked about missing monitoring use cases. Laurence states that if people are not going to help provide use cases then there is nothing much we can do. We can only do our best to cover the use cases that we think should be there. Comments on missing use cases and other suggestions should be given to Laurence who will consolidate them and update the document. Steve F does not like the categorization of the document. Laurence thinks that the categorization is ok as it groups use cases, however, this is a minor editorial issue and can be sorted out at a later date. Steven Burke: How much do use cases define attributes. Sergio asked about the process. Laurence: The use case document helps us to understand why we are defining the schema and to keep our focus. There does not need to be a formal process. Actions: Read the document and provide Laurence with feedback. Laurence will bring any issues up at a future phone conference. Steve F: What is the meaning of multiplicity? Ellen suggests that this would be a profile document. This would be something that would be owned by the gin-wg OGF 21: 2 combined sessions on entities and use cases and 1 joint sessions with BES, reference model, jsdl, saga etc. Next Meeting: Friday 13th 17:55 CET. Details will be send to the Glue Schema list

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OGF 21 planning
by Sergio Andreozzi 10 Jul '07

10 Jul '07

Hi everybody, I got the action to define the details of the next OGF 21 planning. Given the suggestions provided at the today telecon, here is the requests that I will make during the next days: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/Participatio… Please, have a look and provide for any change if needed. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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New draft of GLUE 2.0 Specification
by Sergio Andreozzi 09 Jul '07

09 Jul '07

Hi everybody, we have just uploaded a new draft of the GLUE 2.0 specification. Here are the main changes: - clarify difference between computing resource and computing element - from Gerson Galang use case: single computing service in front of two different batch systems - general clean-up - inclusion of first UML Class diagram for Storage Element (description to be added) - added activity entity - promoted share entity as a main concept you can find it in the draft section of GLUE WG document repository: http://forge.ogf.org/sf/docman/do/listDocuments/projects.glue-wg/docman.roo… we plan to provide a preview of the new changes in the tomorrow call of the OGSA Resource Management Design Team phonecall: http://www.google.com/calendar/event?eid=N25vaWg5MjQ4NTRzOWJpdTU0c3VwMWZzcm… (we apologize for the short-term advise) We will set up a phonecall next week for the GLUE WG. Comments/questions are always welcome. Best regards, Sergio and Balazs -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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GLUE schema in XML and UML
by Wang, Lizhe 03 Jul '07

03 Jul '07

Hello everyone: I have a Glue XML schema 1.2 version. I want to find latest Glue schema in XML or UML format. Could anyone help me? Best regards, Lizhe Wang Institute for Scientific Computing (IWR) Research Center Karlsruhe (FZK) Hermann-von-Helmholtz-Platz 1 D-76344 Eggenstein-Leopoldshafen, Germany Tel: 0049-(0)7247-82-6304 Fax: 0049-(0)7247-82-4972 e-mail: Lizhe.Wang(a)iwr.fzk.de Office: Zi A-203, IWR, FZK

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