Web Services in GI

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Web Services in GI

• Jan Ružicka
• Institute of geoinformatics
• VSB-TU Ostrava
• 17.listopadu, 70833 Ostrava-Poruba,
• jan.ruzicka_at_vsb.cz

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GIS software evolution / 1

• Digital cartography command line, software for
  visualisation only (ussualy for printing only)
• Geostatistics desktop software for spatial
  statistics, tabular data, graphs, etc.
• Spatial analysis command line, software for
  analysis, without visualisation
• CAD desktop software for geodata creating,
  ussualy without attributes

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GIS software evolution / 2

• Digital cartography Geostatistics Spatial
  analysis CAD integration into one huge
  desktop software
• Large data manipulating spatial indexing
  techniques, long transactions, time

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GIS software evolution / 3

• Client / server solutions
• Thick client
• Thick client with customisation options
• Thick client with scripting options
• Thick client with API

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GIS software evolution / 4

• Local programing map components COM, ActiveX,
  Java (JAR) user based client
• Thin client / map server

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GIS software evolution / 5

• Interoperability
• Simple features
• Geography markup language - GML
• Web Map Service - WMS
• Web Feature Service - WFS

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GIS software evolution / 6

• Spatial data in RDBMS
• Long transactions
• Object orientation
• Large data
• Time GIS

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GIS software evolution / 7

• Metadata
• Metainformation systems
• Data providing WMS, WFS

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GIS software evolution / 8

• Thin client map server GIS server
• Closed solution
• Based on one software family

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GIS software evolution / 9

• Distributed programing map components
• Local PMC Web Services
• Web Services only
• Open solution
• Interoperability

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GIS software evolution / 10

• Interoperability
• Standards
• Metadata for data, services, processes, analysis
• Standardised Web Services

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Changes for users

• Standard user new data sources, new functions
  without software upgrading
• Advanced user Standard user possibility to
  develope new functions (like in Model Builder in
  ArcView)

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Known standards

• Spatial data description
• Global ISO, CEN
• Local ISVS, FGDC, German ISO,
• Firm ESRI ISO

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Known standards

• Managing spatial data description
• Global OpenGIS
• Firm ESRI

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Known standards

• Spatial data delivery
• Global OpenGIS (WMS, WFS)
• Firm ESRI, UMN, Autodesk

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Known standards

• Web Services description and managing
• Global WSDL, UDDI
• Local FGDC, ISVS
• Firm ESRI

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Common problems

• ESRI own standards
• Some standards for Web Services do not specify
  SOAP communication

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Existing services - World

• A lot of WMS
• A few WFS
• A few CS (Catalog Services) eq. University of
  Zaragoza, University of Lyon
• ESRI - ArcWebServices
• Microsoft Map Point Location Server

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ArcWebServices / 1

• Hosted by ESRI
• Open for publishers
• ArcWeb for Developers charged
• ArcWeb Services for ArcGIS users free
• ArcWeb Services Solutions - charged

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ArcWeb for Developers

• Services Place Finder, Address, FinderRoute,
  Finder, Map Image, Proximity, POI Manager, Query,
  Utility ,Account Info
• Data Street Maps, Routing, Geocoding Satellite
  Imagery, (Live Weather, Live Traffic,
  Topographic, Flood)

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ArcWeb for ArcGIS

• ArcWeb Toolbar
• Data only USA, Canada (Topography, Trafic,
  Imagery, etc.), World (Satelite images)

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Microsoft

• Map Point Service (Addresses, Nearest, Routing,
  Map Image, POI)
• Map Point Location Server based on Map Point
  Service
• http//www.computerworld.com/developmenttopics/dev
  elopment/webservices/story/0,10801,88092p2,00.html
  

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Web Services - Czech

• MAO (Municipality Authority of Ostrava)
• FMI (Forest Management Institute) HelService
  Remote Sensing
• CGS (Czech Geological Survey)
• MRD (MINISTRY FOR REGIONAL DEVELOPMENT)
• VSB - TUO

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OGC Specifications support
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Further Reading / 1

• http//www.esri.com
• http//www.microsoft.com
• http//www.inovagis.org/giserver/webservices/ -
  Inova GIS
• http//map.sdsu.edu/gisbook/index.htm - GIS
  internet

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Further Reading / 2

• http//www.ing.unitn.it/grass/conferences/GRASS20
  02/proceedings/proceedings/pdfs/Panatkool_Apirak.p
  df - GISwebServices Client
• http//www.itc.nl/library/Papers_2003/non_peer_con
  f/aditya.pdf - CHAINING DISTRIBUTED GIS SERVICES

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Further Reading / 3

• http//gisfactory.com/webservices.html
  GISFactory
• http//www.gridlab.org/Resources/Deliverables/D10.
  4.pdf - GridLab MDS

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Further Reading / 4

• http//gama.fsv.cvut.cz/soucek/cv/prace/2002/prah
  a-fsv/praha-fsv-photopa.doc - Systém "PhotoPa" -
  databáze památek CR
• http//www.arcdata.cz/download/arcrevue/02_2003.pd
  f - Standardy v GIS Standardy v GIS

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Exercise

• Find a web service for GI and publish it in
  MIDASVSB http//gis.vsb.cz/midasvsb
• MIDASVSB is accessible from the intranet only

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