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1.4.4. Unit-Summary

Web Feature Service is an interface allowing requests for geographical features across the web using platform-independent calls (the result is a GML-file). Geographical features can be thought of as the "source code" behind the map and can be edited or spatially analyzed. (Wikipedia)

WFS defines the following operations:

  • GetCapabilities (mandatory)
  • DescribeFeatureType (mandatory)
  • GetGmlObject (optional)
  • GetFeature (mandatory)
  • Transaction (optional)
  • LockFeature (optional)

Each operation returns a GML file as result. The GetFeature request is the operation that is mainly used. You can implement the features that you get from this request in an arbitrary application.

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