Web Services for an

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• Web Services for an
• Open Generalisation Research Platform
• Moritz Neun and Dirk Burghardt

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Summary

• Classification of Generalisation Services
• Web Services for Generalisation Middleware
  Scenarios Generalisation Platform
• Registry for Generalisation Services
• Deployment as Plug-In for Desktop GIS

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• 1. Classification of Generalisation Services

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Categories for Generalisation Services

• 1. Generalisation support service

buffering
CDT - Constraint delaunay triangulation
skeleton
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Categories for Generalisation Services

• 1. Generalisation support service
• 2. Generalisation operator services
• classification
• simplification
• collapse
• enhancement
• selection / elimination
• displacement
• aggregation

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Categories for Generalisation Services

• 1. Generalisation support service
• 2. Generalisation operator services
• 3. Generalisation process services
• for automated orchestration
• for evaluation of generalisation results

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Service Category Interrelations
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• 2. Web Services for Generalisation

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Web Services?

• Web Services allow interoperable
  machine-to-machine interaction over a network ?
  what HTML-pages for humans are the web services
  for the machines, therefore they communicate with
  XML via web protocols and their interfaces are
  described in a machine processable XML format
• Characteristics
• service oriented architecture (request/response/ex
  ception)
• n-tier distribution (layered architecture)
• component architecture (generic interfaces)
• platform independence (web protocols/XML)

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Application scenarios
Web Feature Service
Generalisation Service
GEO Database
Web Map Service
GIS, map production
GIS Client / Browser
Generalisation Service
Middleware solution
Generalisation platform

• clustering allows real time typification of
  symbolized foreground objects (e.g. points of
  interest)
• applications - adaptive zooming for web
  mapping - dynamic mapping for mobile
  applications
• limits only applicable for simple generalisation
  operations

• standalone generalisation services
• interactive solution, generalisation service as
  toolbox
• practicable for complex generalisation

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Benefits

• map production
• possibility to offer generalisation solutions as
  new business model (rent CPU time)
• customers can keep their production lines
• open research platform for generalisation
• allows techniques and code to be shared
• supports benchmarks and comparison of different
  implementation
• complex generalisation task like orchestration of
  generalisation operators can be addressed

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• 3. Registry for Generalisation Services

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Registry for Generalisation Services
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Generic XML Interface Description
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Process Communication
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• 4. Deployment as Plug-In for Desktop GIS

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JUMP Plug-In Example
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JUMP Plug-In Example
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• Thanks for your attention!
• Any questions, suggestions or comments?