{
  "$schema": "http://json-schema.org/schema#",
  "$schemaVersion": "0.0.1",
  "$id": "https://smart-data-models.github.io/dataModel.ERA/Certificate/schema.json",
  "modelTags": "ERA vocabulary, railway, train",
  "license": "https://smart-data-models.github.io/dataModel.ERA/Certificate/LICENSE.md",
  "derivedFrom": "http://data.europa.eu/949/InfrastructureObject",
  "type": "object",
  "allOf": [
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
    },
    {
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "InfrastructureObject"
          ],
          "description": "Property. NGSI data type. It has to be InfrastructureObject"
        },
        "validityEndDate": {
          "type": "string",
          "description": "Property. Validity end date"
        },
        "validityStartDate": {
          "type": "string",
          "description": "Property. Validity start date"
        },
        "hasAbstraction": {
          "type": "string",
          "format": "uri",
          "description": "Relationship. Has abstraction"
        },
        "inCountry": {
          "type": "string",
          "format": "uri",
          "description": "Relationship. In country"
        },
        "infrastructureMgr": {
          "type": "string",
          "format": "uri",
          "description": "Relationship. Infrastructure manager"
        },
        "lineReference": {
          "type": "string",
          "format": "uri",
          "description": "Relationship. Railway location of Operational point"
        }
      }
    }
  ],
  "required": [
    "id",
    "type"
  ],
  "title": "InfrastructureObject + mapped from ERA ontology by Smart Data Models",
  "description": "This class encompasses all those classes that represent features that are  implemented in the European railway infrastructure. It is a subclass of the ERA Feature that has a spatial representation. It covers tracks, platforms, signals, tunnels, operational points, and sections of line.\nA feature that belongs to the infrastructure can be abstracted (hasAbstraction) as a topological object. It also is related to the infrastructure manager through the property infrastructureMgr."
}