WebGIS

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WebGIS
SUNY at Buffalo
Department of Geography

• Addresser Yeming FAN

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Outline

• What is WebGIS
• Why WebGIS
• ESRIs two products for WebGIS
• General structure of WebGIS systems
• Two cases
• Discussions

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What is WebGIS ?

• WebGIS is the solution for distributing mapping
  and GIS data and services on the Web.

• Not only Web mapping

• Always a distributed system

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Why WebGIS ?

• Just a fancy word?
• Data sharing
• Accessibility
• Cost
• Convenience

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ESRIs two products for WebGIS

• ArcIMS

ArcIMS (Internet Map Server) enables users to
distribute high-end on-line GIS and mapping
services and to display, query, integrate, and
analyze local and remote data sources in a
browser.
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• Some features of ArcIMS
• Easy to get started
• Small but fast
• Support both Thin client and Fat client
  structures
• ESRI's development of ArcIMS is now limited.

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• ArcGIS Server

ArcGIS Server connects people with geographic
information via Web applications and services.

• Some features of ArcGIS Server
• Data Management
• Spatial analysis
• Spatial Web Editing Functionality
• ESRI's main server GIS product now.

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General structure of WebGIS systems
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Two cases

• ArcIMS Case
• Erie County Intranet Mapping Service
• http//gis1.erie.gov/website/erieny/Viewer.htm

• ArcGIS Server Case
• Sample Flex Viewer from ESRI
• http//www.esri.com/serverdemos/flexviewer/index.
  html

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Discussions

• Many products for WebGIS are available

• The trend of GIS

• A necessary preparation for semantic web

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• Thank You
• for Your Attention!