1. OGC/Grid activities in UK Chris Higgins (EDINA), Phil James (Uni of Newcastle), Andrew Woolf (CCLRC)

2. ‘Grid-GIS’ ad-hoc Working Group of National Institute for Environmental e-Science, Cambridge (NIEeS, http://www.niees.ac.uk)http://www.niees.ac.uk Investigating funding possibilities Developing roadmap for Grid-GIS research

3. JISC Grid-OGC Collision Programme Call came out March 2006 Area A on Security (EDINA SEE-GEO project) Area B on Workflow (Newcastle SAW-GEO project) Area C on OGC Liaison (EDINA leading)

4. SEE-GEO SEcurE access to GEOspatial services (started Oct 10 2006) Emphasis on building on existing UK e-infrastructure Particularly: –National Grid Service (NGS) –JISC funded National Datacentres – MIMAS and EDINA –Shibboleth Partners: –EDINA –MIMAS –National e-Science Centre (NeSC) –National Centre for e-Social Science (NCeSS)

5. SEE-GEO Aim is to investigate how core geographic datasets may be made available on the NGS to the UK academic sector Data access using OGC Web Services Security using a combination of: –Shibboleth –Grid Security Infrastructure –WS-Security (maybe) Main deliverables are a report and 3 demonstrators: 1.National datacentre 2.Social Science (NCeSS) 3.Orchestration (Newcastle)

6. SEE-GEO – Highlights An example of Grid and Geospatial standards converging Integration of WMS, WFS and WCS into OGSA-DAI (Open Grid Services Architecture – Data Access and Integration) Open Grid Forum (OGF) OGC Liaison, e.g. workshop showcasing OGC/TC 211 standards at OGF20 in Manchester May 2007

7. SAW-GEO Development of Semantically Aware Workflow Engines for Geospatial Web Service Orchestration convergence of geographic web services and grid web services common need/possibility for integration of data from different sources role of existing standards in geographic web services OGC WFS (web feature services); WMS (web map services); WCS (web coverage services); CSW (catalogue web services) equivalence to standards in grid web services publish (UDDI); find/describe (WSDL); and bind (SOAP)

8. SAW-GEO proposed architecture chaining multiple web services together semantically informed workflow management system and workflow engine workflow engine deployable onto Apache Tomcat web portal into the workflow engine use of OGSA-DAI wrappers and the Globus toolkit

9. SAW-GEO OGC WCS OGC WFS OGC WMS Clients OGSA -DAI WCS OGSA -DAI WFS OGSA -DAI WMS Workflow Management System MapServer or GeoServer Globus Toolkit SAW-GEO EDINA Newcastle

10. SAW-GEO

11. Presenter Name Facility Name Resource-orientation in OGC (slide from Ian Foster, © Globus Alliance)

12. Presenter Name Facility Name Resource-orientation in OGC Web Services Resource Framework (WSRF) –separates ‘service’ and ‘stateful resource’ upon which service acts –OASIS approved standard April 2006 –WS-Resource: identity (WS-Addressing) lifetime (WS-ResourceLifetime) state/properties (WS-ResourceProperties) –publish-subscribe mechanism for state changes (WS-Notification)

13. Presenter Name Facility Name Resource-orientation in OGC Data as stateful resource? –looser coupling between service and data –supports ‘service coherence model’ –standard mechanism for handling latency –service consistency w.r.t. data resources e.g. Workflow with ‘Grid-enabled’ OGC services through WSRF refactoring

14. Presenter Name Facility Name Resource-orientation in OGC Grid storage ‘fabric’: SRB, DAIS,... Data provider A Data provider C Data provider B Service provider WCS WFS WMS GetCoverage(...)

15. Presenter Name Facility Name Resource-orientation in OGC WSRF: HP, IBM Microsoft: WS-Transfer, WS-Eventing Recently:

16. Summary NIEeS ‘Grid-GIS’ ad-hoc working group JISC £100k Call on ‘Grid-OGC Collision’ –SAW-GEO: security (EDINA) –SEE-GEO: workflow (Newcastle) Data as stateful resource (CCLRC, unfunded)