{
    "$schema": "http://json-schema.org/schema#",
    "$schemaVersion": "0.0.1",
    "$id": "https://smart-data-models.github.io/dataModel.ERA/Certificate/schema.json",
    "modelTags": "ERA vocabulary, railway, train",
    "license": "https://smart-data-models.github.io/dataModel.ERA/Certificate/LICENSE.md",
    "derivedFrom": "http://data.europa.eu/949/Feature",
    "type": "object",
    "allOf": [
        {
            "$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": [
                        "Feature"
                    ],
                    "description": "Property. NGSI data type. It has to be Feature"
                },
                "currentlyValid": {
                    "type": "boolean",
                    "description": "Property. Currently valid"
                },
                "length": {
                    "type": "number",
                    "description": "Property. Length"
                }
            }
        }
    ],
    "required": [
        "id",
        "type"
    ],
    "title": "Feature + mapped from ERA ontology by Smart Data Models",
    "description": "Class that encompasses the features that are part of the physical infrastructure (class InfrastructureObject) and the topological objects (class TopologicalObject). It is a subclass of the geographical Feature class that has a spatial representation."
}