Minimum Content Requirements

The goal of the minimum content standard is to include only the information needed to identify an address as well as some basic identifying/metadata information about the address. The objective is to avoid a complex schema as it is not intended to be a schema used for data management, but rather for national rollup. In general, the Open Address Information Dataset will contain three main components:

For detailed information please see the National Address Database Schema.

• Address
  • Address Number, Street Name, Subaddress
  • City/Town/Place, County, State, Zip

• Geolocation
  • Use either Lat/Long or United States National Grid Coordinate System

• Metadata: Further identification and character attributes about the address location
  • Unique ID (e.g.., GUID)
  • Address type (residential or commercial)
  • Address placement (Codes can be used: Rooftop (if using imagery), driveway entrance, vehicle placement, structure entrance, centeroid, etc.)
  • Address authority: data creator/source: Open Address Information App, State, County or municipal authority by name, other providers by name, ...etc.
  • Address date

These data elements represent the ideal data content for the Open Address Information data schema. However, if a given jurisdiction (county, state, tribal area, etc.) has address data that does not contain all of these elements, the data will be accepted into the Open Address Information Dataset to the extent possible. For example, certain components such as Address Type and Address Placement likely will not be required. However, datasets will be rejected if they don’t contain the key basic address information as well as key contact information metadata elements such as in address authority, address source and address date. Furthermore, if a jurisdiction has additional information in their dataset that is not included in the Open Address Information Dataset at the time, they are encouraged to submit their data in its entirety it as it may inform future additions to the Open Address Information Dataset.

Process and operation of the Open Address Information Dataset: ROLLUP APPROACH

• The Open Address Information Dataset is a roll-up, harvested from authoritative data. Authoritative data is considered to be the data emanating from a government entity responsible for the address creation and maintenance usually at the local level.
• The Open Address Information Dataset will use the best practice of full street address parsing including domains for street type and directionals for data validation.
• The Open Address Information crowdsource app will potentially feed into the authoritative source at the local level and thereafter become authoritative data.