These data models allow to perform civic issue tracking. They have been designed with a view to enabling trivial interoperability between FIWARE NGSI version 2 and NGSI-LD and Open311. As a result, property names have not been normalized to the camelCasesyntax, they remain as currently specified by Open311. That is the rationale behind naming entity types with Open311 as prefix. However, a few properties are added, so that FIWARE NGSI version 2 implementations can properly store and serve Open 311 data.

In the medium term, might propose to the Open311 Community a harmonized data model aligned with the rest of smart data models and schema.org. In fact, using these data models and a FIWARE NGSI version 2 o rNGSI-LD implementation it is trivial to implement the APIs proposed by Open311. Another option would be the use of JSON-LD to define equivalencies and mappings between a FIWARE / Schema.org data model and Open 311.

The FIWARE NGSI civic issue tracking data model defines the following entity types:

• Open311:ServiceType. A type of service a citizen can request. It encompasses data from the Open 311 GET Service List and GET Service Definition.
• Open311:ServiceRequest. A specific service request (of a service type) made by a citizen.