GeoConfidence Module

The GeoConfidence Module is used to determine the probability that an address or street intersection is within a given area. The module takes an address or intersection's location (determined by Geocode US Address), converts that location to a point, line, or polygon (depending on the precision of the match), then compares that shape with a database of known shapes to see if the two overlap, and the percentage overlap. For example, you could use the GeoConfidence Module to make decisions on a flood zone rating based on how much overlap there is between an address's location and the flood zone data. Anything greater than a 95% overlap with a 100-year flood zone may indicate that the address is in the flood zone. Conversely, anything less than 95% could cause your business process to send the address to exception processing that might include a manual review.

An address or intersection can be geocoded to a point, an address along a street segment (an array of street segment points), ZIP + 4 centroid, ZIP + 2 centroid, or ZIP Code centroid (polygons). You can use these shapes (points, lines, or polygons) to compare with other shapes to determine overlap, which can be used to determine a risk or probability.

Different geoconfidence polygons are generated depending on the GeoConfidence result returned by the Enterprise Geocoding Module. For more information about the GeoConfidence information returned by the Enterprise Geocoding Module, see the Enterprise Geocoding Module documentation.

The GeoConfidence Module supports U.S. locations only.

Note: GeoConfidence uses services provided by the Enterprise Geocoding and Spatial modules.

Stages

GeoConfidence deploys three dataflows that you can modify in Enterprise Designer. Each dataflow consists of various stages that were installed with the Enterprise Geocoding and Spatial modules.

For information about each stage in the installed dataflows, see the relevant component chapter in the Spectrum™ Technology Platform User's Guide.

The names of the dataflows are:

  • GeoConfidenceSurface This is the dataflow that creates the geoconfidence surface that can be used for further analysis. The input is the GeoConfidence information that is returned from the Enterprise Geocoding Module. Currently, only the Geocode US Address stage can return this information.
  • CreatePointsConvexHull This is a subflow that is used by the GeoConfidenceSurface template. You should not need to make any changes to this subflow.
  • FloodRiskAnalysis This is an example dataflow.