The myGrid Information Model

1
The myGrid Information Model

• Nick Sharman
• myGrid Developers Day, 6 May 2005
• www.mygrid.org.uk

2
The myGrid Information ModelOutline

• myGrid in context
• Science e-Science
• The information model
• Next steps
• Conclusions

3
myGrid in Context
External Services
Java applications
AMBITtext extraction service
Executable codes with an IDL
Legacy applications
Web Services
OGSA-DAI databases
Web Sites
4
The myGrid Information ModelScience and e-Science

• The scientific process
• Observe and describe phenomena and study existing
  knowledge
• Formulate a hypothesis to explain the phenomena
• From the hypothesis, predict other phenomena
• Develop and perform repeatable experiments that
  test the predictions.

• E-science parallels
• Search online repositories, with workflows and
  queries
• Create domain ontologies to express hypotheses
  and
• predictions
• Workflows and queries can be preserved, shared,
  re-enacted

5
The myGrid Information ModelAspects of the model

• Based on the CCLRC Scientific Metadata Model
  (Matthews Sufi)
• Programmes, studies experiments
• People organizations
• Data types
• Provenance metadata
• Semantic annotation

6
The myGrid Information Model Programmes, studies
experiments
7
The myGrid Information Model Provenance metadata
8
The myGrid Information Model Annotation
argumentation
9
Next Steps modelling e-science events
Third-party tools
Tavernae-Science workbench
Haystack
LSID Launchpad
Web portals
Utopia
LSID support
Metadata management
Data management
KAVE metadata store
Service workflow discovery
mIR myGrid information repository
Fetasemantic discovery
KAVE provenance capture
Core Services
Pedro semantic publication
Workflow enactment
Pedro semantic publication
Freefluoworkflow engine
GRIMOIRES federated UDDI registry
myGrid ontology
Web Service (Grid Service) communication fabric
External Services
Java applications
Soaplab
AMBITtext extraction service
OGSA-DAI DQP service
Executable codes with an IDL
Gowlab
Legacy applications
Web Services
OGSA-DAI databases
Web Sites
10
The myGrid Information ModelConclusions

• Builds on existing work
• CCLRC Scientific Metadata Model
• LSID gives access via third party tools
• Semantic web
• Persistent types implemented in MIR, KAVE
• Transient types in progress
• Needs validating