The GeoShare Project

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The GeoShare Project Building a Transnational
Geodata-Infrastructure

• Thomas Vögele, Rainer Spittel, Sebastian Hübner,
  Ubbo VisserCenter for Computing Technologies,
  TZI
• Universität Bremen
• Münsteraner GI-Tage 2003

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Universität Bremen Center for Computing
Technologies (TZI)
Human Factors and Information Management
Digital Media and Networks
Image Processing
Prof. J. Friedrich Prof. H. Kubicek
Prof. O. Herzog
Prof. U. Bormann
Dr. M. Wind
Dr. G. Ioannidis
Dr. C. Bormann
Director Prof. Peleska Managing Director Dr.
BoronowskyScientific Support Ihlenfeld Admin
Landau
Scientific and Industry Advisory Board
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The GeoShare Project

• Collaboration of 4 partners in the North Sea
  Region
• Sogn og Fjordane (Norway)
• Groningen (Netherlands)
• Edinburgh (Scotland)
• Bremen (Germany)
• Mostly administration, plus technical experts
• Project is funded through theEU Interreg IIIB
  North Sea Region programme
• Duration 12/02 12/05

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Objectives

• Improve exchange and usage of geospatial data and
  other spatially related information
• Establish a transnational cooperation in 3
  thematic areas
• Spatial planning
• Labour and education
• Tourism and cultural heritage
• Develop a transnational (technical)
  infrastructure for the exchange of geospatial
  data and information

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Technical Approach to GeoShare

• Two types of services
• Basic services (basic functionality needed by all
  partners)
• Advanced services (specialized functionality
  needed by one or more regional applications)

• The GeoShare Network is a transnational, OGC
  compatible and service-based geodata
  infrastructure
• Distributed services, accessible to all project
  partners
• Concept is tested and proven (e.g., GDI-NRW)

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GeoShare NetworkImplementation-Phase I

• Intelligent Catalog Service (ICS) provides
  centralized registration, search, and metadata
  management services
• Applications in the partner regions remain
  independent
• Applications are hosted and maintained by the
  partners
• Applications are accessible through customized
  clients

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GeoShare Network Implementation-Phase II

• A common WMS is made available for all project
  partners
• Basic web services (e.g., WMS, WFS), and
  geodatabases are implemented in partner regions
• Project partners are able to
• integrate individual applications in common WMS
• configure map representations remotely
• Common WMS accesses remote data through WMS
  (cascading), WFS, or OGC geodatabase interface

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GeoShare Network Implementation Phase III

• All data will be accessible through web services
  hosted by the partners
• Additional advanced services (ADS) will be
  hosted by the partners
• All available services can be linked together to
  complex applications through service chaining

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Software Solutions

• Applications use software from different vendors
• Common infrastructure based on OGC compatible
  (conforming or implementing) software
• Focus is on OpenSource software and in-house
  developments
• For first prototype
• UMN Web Map Server (Minnesota University) with
  ArcSDE and PostGIS
• Intelligent Catalog Server (ICS) based on BUSTER
  tool (Universität Bremen)

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The Intelligent Catalog Service

• Manages metadata descriptions for all registered
  data and services in GeoShare Network
• Search over terminological, spatial, and temporal
  domain
• System maintains formalized knowledge
  (ontologies) for these domains
• Intuitive queries, logic conclusions, mapping
  between ontologies

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Step 1 Selection of Thematic, Spatial and
Temporal Domains
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Step 2 Selection of Keywords, Regions and Time
Periods
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Step 3 Query Results
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Water Quality Data on WMS 1 (SBU)
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Background Data on WMS 2 (Catastre Office)
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Integrated View through Cascading WMS
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Summary and Discussion

• Project still in initial phase
• Overall objective Building a transnational
  geodata infrastructure
• Regional objective (Bremen) Initializing geodata
  infrastructure for Bremen
• Basic infrastructure will be available in
  September 2003
• Advanced services will be available by summer
  2004
• Focus on the use of OpenSource software
• Intelligent Catalog Service
• Integration of thematic applications in the
  partner regions
• Thematic focus in Bremen Implementation of WFD

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More information about GeoShare
atwww.geoshare.dewww.geoshare.netvogele_at_tzi.d
e