mGraffiti

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mGraffiti

• Peter Pesti
• John Gibby
• Georgia Institute of Technology

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Problem definition

• Provide virtual graffiti service to the world
• Create a sense of community over the boundary of
  time
• Supply location-based sharing of experiences and
  opinions
• blog of location
• guestbook
• Provide an additional fun dimension to excursions
  and trips

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Impactfulness

• Broad impact
• public use
• Deeper impact
• Flexible framework supports reuse
• Coordinating aid workers
• Telephone company maintenance
• Geocaching

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User interface
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User interface
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User interface
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Technologies

• Development tools
• Visual Studio .NET 2003 Professional
• Pocket PC 2003 SDK
• Servers and operating systems
• Windows Server 2003
• Windows Mobile 2003
• SQL Server 2000 SP3
• Other technologies
• .NET Compact Framework 1.0
• .NET Framework 1.1
• C
• XML Web Services
• ADO.NET
• ASP.NET
• GPS.NET

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Architectural overview
SOAP
SOAP
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Client architecture
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Server architecture
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UTM
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Imagery inside TS

• Satellite imagery as 10KB image tiles ?
  designed forfixed browsers
• Proprietary image identification

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Image tiles

• TerraServer tiles are split in four
• Identified by UTM coordinates
• Cached in mGraffitiService
• Cached on PDA

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Questions