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The standard-based exchange interface (NAS) was defined in line with the introduction of the geographic information systems AFIS, ALKIS and ATKIS (AAA-model). This data interface serves for the exchange of geo data. Henceforth the until now accepted data formats BGRUND and DFK are replaced through it. The BBSoft® NAS-converter translates the XML-based property cadastre in CAD- and in database utilizable files. The extensive data model of the BBSoft® solution contains an expansive conversion catalogue.


  • different requirements of the federal states are supported
  • possible adjustment of the ALKIS-import to the office standards of the user
  • an import of several XML-files in only one pass is possible
  • huge amounts of data can be managed quickly and clearly in a GIS-database.

DXF™/DWG™ output
The NAS-converter offers, besides the possibility to generate GIS-data, also the automatic generation of a DXF™-location plan.

  • the conversion generates geometric objects of points, lines, surfaces and texts
  • the presentation occurs on different layers, according to the specialised meaning
  • the use-related filling of the surface can be determined by closed polylines (buildings or parcels of land)
  • a professional implementation of the symbolism of points, including bench marking and quality level, is possible.

Adoption in the Oracle®-database
It is possible to take over the ALKIS and ALB data in the Oracle®-database through a particular file format. The data can be represented in the BBSoft®-viewer and/or in the CAD and you will receive access to the ALB-data, belonging to the object, very easily.

Further features:

  • NAS-export of building points, ridge lines and building surfaces (based on MiA-GÜVO)
  • the implementation is adapted to GeoInfoDok 6.0, 6.1, 7.0, 7.1 and tested with the official test cases of all currently delivering federal states
  • user-specific presentation methods are given, like e.g. free layer- and symbol assignment
  • presentation of watercourses and parcels of land with flow arrows and belonging lines
  • included libraries with a variety of of symbols and presentation options
  • preset hatch patterns for better determination of main- and adjoining building (e.g. depending on type of use)
  • presentation of parcel boundaries according to type of use
  • correct presentation of islands of parcel of land
  • adoption of posting data
  • adaptations and corrections, which occur continuously on the NAS-format, can be obtained online
  • adoption of boundary- and topographical lines in the database
  • differentiation for limiting-, recording-, covering- and other points. Separate marking of trigonometrical points
  • presentation is controllable for point type, for data origin and for the kind of bench marking

required modules: BB-VGR, BB-LGGR, BB-GFKAT, BB-GEGR, BB-VNAS

  • NAS


  • NAS

    parcel of land protocol

  • NAS

    DXF™/DWG™ output

  • NAS

    detailed view