Access Control for OpenGIS Web Services

Access Control for an OpenGIS Web Service based Spatial Data Infrastructure is one of the relevant pre-conditions to provide high quality geographic information. Basically, access to the services has to be protected by an appropriate Access Control System that realizes (at least) the following requirements:

These (and more) requirements are supported by the Geospatial eXtensible Access Control Markup Language, short GeoXACML. It defines a geo-specific extension to the eXtensible Access Control Markup Language, short XACML which is a standard from OASIS. More information on GeoXACML can be obtained from the homepage.

GeoXACML is currently an OGC Draft Implementation Specification.