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Go-Geo! - A Geo-data Portal

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will be a resource discovery tool that tells users what geo-spatial data and ... PRESBYTERY OF FORDYCE.) By the Rev. Mr. ROBERT GRANT. Royalty, Extent, Climate, etc. ... – PowerPoint PPT presentation

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Title: Go-Geo! - A Geo-data Portal


1
Go-Geo! - A Geo-data Portal
Go-Geo! will be a resource discovery tool that
tells users what geo-spatial data and related
resources exist for a given area phase II
demonstrator project JISC funded, commenced June
2002, 1 year duration joint project between EDINA
and HDS aim develop a demonstrator service
suitable for extension to full service links with
national effort, the NGDF network uses HE/FE
extension to NGDF metadata discovery guidelines
to describe geo-spatial datasets need to migrate
to use ISO 19115 in time built upon Z39.50
technologies
2
Vision
  • promote greater awareness of geo-spatial data
    within HE
  • increasing amounts of geo-spatial data being
    created
  • help make more (effective) use of these data
  • promote greater awareness of geo-spatial data
    within the wider GI community in the UK
  • an access point to geographically related
    resources
  • obvious things (software, learning resources,
    training, etc.)
  • BUT ALSO case studies, articles, images and
    projects, mail lists etc
  • all tied together by location
  • portal becomes a geographically oriented access
    point to the JISC Information Environment
  • long term, if it becomes a service, extend to
    support access and data fusion

3
Geo-spatial data data that have some form of
spatial or geo-graphic reference that enables
them to be located in two- or three-dimensional
space
4
Other IEContent Providers
Geo-data Gateway
NGDF Network
Go-Geo! portal architecture
Metadata or resource servers
Geo-data Network(proposed)
5
Challenges
  • creation of metadata
  • how do we encourage documentation of geo-spatial
    data?
  • how do we ensure metadata is comprehensive,
    current?
  • discovery is all very well but what about access
  • researchers and lecturers unable to handle
    requests for data
  • require mechanism for 'publishing' their data
  • integrating existing geo-spatial data
    descriptions
  • e.g. HDS uses DDI not NGDF metadata guidelines
  • spatial searching for related resources
  • majority of services within JISC IE have no
    geo-referencing
  • even if they were, the Z39.50 software employed
    either
  • doesn't support appropriate profiles e.g. GILS,
    GEO
  • doesn't have functionality to undertake spatial
    searching

6
Cross-searching the JISC IE 1
JISC IE
7
Cross-searching the JISC IE 2 Find me resources
about my study area
Map area 340900, 392300 - 347217, 397660
Place names
Postcodes
Parish names
8
The services registry
  • Need to know
  • service provider
  • e.g. name, description, contacts
  • service details
  • e.g. service name, description, access point,
    content type
  • technical details of the service
  • e.g. protocol (Z39.50), profile (geo), element
    set details
  • additional information e.g.
  • spatial domain
  • form of geo-referencing
  • spatial search attributes
  • geographic MBR of contents
  • time coverage
  • metadata standard and mappings
  • which software
  • Using UDDI approach
  • businessEntity
  • businessService
  • bindingTemplate
  • tModels
  • xml extensions
  • stored in bindingTemplate
  • tmodel instance details
  • instance details
  • instance parameters
  • for internal geo-portal service use only
  • still early stages of thinking

9
JISC Information Environment
Content providers
Shared services
Authentication
Authorisation
Broker/Aggregator
Collectn Desc
Portal
Portal
Portal
Go-Geo! Portal
Service Desc
Resolver
Instn Profile
End-user
10
Contacts
  • Dr David Medyckyj-Scott
  • Manager, Research and Geo-Data Services
  • Email d.j.medyckyj-scott_at_ed.ac.uk
  • EDINA web site http//edina.ac.uk
  • Tel. 44 (0)131 650 3302
  • Fax 44 (0)131 650 3308
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