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Transcript of Todd King. .
Vision
A data cloud built with open metadata, open services, open sharing and standard formats.
This shifts the data focus so that:“What” is more important than “Where”. (the essence of a cloud)
Virtual Observatories (aggregators) are the interface to the cloud.
Guiding PrinciplesFor Science Information
SystemsA System with: Involvement of scientists in each stage of the process
Openly accessible data that are independently scientifically usable.
Every resource has a Universal Resource Identifier (URI).
Preserve all available knowledge about a resource. Provenance
Caveats
Annotations
Associations
Publications
… Trusted archives
… Leads to Analysis
Magnetometer (FGM) data from THEMIS-D spase://VMO/NumericalData/THEMIS/D/FGM/PT0.0078125S
THEMIS-D: Solid State Telescope (SST): Energy flux spectrogram, electron/ion ground-calculated fluxes (30 keV - 300 keV). (spase://VMO/NumericalData/THEMIS/D/SST/PT3S)and THEMIS-D ESA electron/ion energy fluxes and moments (spase://VMO/NumericalData/THEMIS/D/ESA/PT3S)
Behind the Scenes: Metadata Workflow
Domain Expert &Information Expert
Data Provider
Quality Assurance
Private RepositoryPublic Repository
Service Provider VirtualObservatory
Researcher
Resources
Generation
Management
Utilization
Objectives
Challenges
Robustness Its accessible and reliable.
Completeness Its the most definitive source of information.
Quality Assurance It can be trusted
Usability of Data FormatsOne click rendering and analysis
PreservationKeeping things safe for the future.
SeamlessEasily transition from data discovery to evaluation
to analysis to publication.
Meeting the Challenges
It takes effort to meet the challenges This is best met as a social effort (many people working
collectively)
Many of the challenges are being met by today’s virtual observatories in: Astronomy (IVOA)
Planetary (PDS)
Heliophysics (HPDE)
Earth Science ()
Further refinement and enhancements are happening now
Cross discipline usage and seamless integration remain a challenge to be met.