Alert

This model is based on FIWARE Alert.

This entity models an alert and could be used to send alerts related to (…) [specific categories of alerts]. The purpose of the model is to support the generation of notifications for a user or trigger other actions, based on such alerts.

An alert is generated by a specific situation. The main features of an alert is that it is not predictable and it is not a recurrent data. That means that an alert could be an accident (…).

The required attributes are: id, type, category, dateIssued, alertSource.

Example for maintenance alert for skid (car-body platform) no. 12345:

{
    "id": "urn:ngsi-ld:Alert:company-xyz:pred-maint-3x29md89",
    "type": "Alert",
    "category": {
        "type": "Property",
        "value": "predictiveMaintenance"
    },
    "subCategory": {
        "type": "Property",
        "value": "incorrectPaintingProcessInKTL"
    },
    "validTo": {
        "type": "Property",
        "value": {
            "@type": "DateTime",
            "@value": "2017-01-02T10:25:55.00Z"
        }
    },
    "description": {
        "type": "Property",
        "value": "Skid no. 12345 needs maintenance"
    },
    "location": {
        "type": "GeoProperty",
        "value": {
            "type": "Point",
            "coordinates": [-3.712247222222222, 40.423852777777775]
        }
    },
    "dateIssued": {
        "type": "Property",
        "value": {
            "@type": "DateTime",
            "@value": "2017-01-02T09:25:55.00Z"
        }
    },
    "alertSource": {
        "type": "Relationship",
        "object": "urn:ngsi-ld:Asset:company-xyz:skid-12345"
    },
    "source": {
        "type": "Property",
        "value": "PMADAI"
    },
    "validFrom": {
        "type": "Property",
        "value": {
            "@type": "DateTime",
            "@value": "2017-01-02T09:25:55.00Z"
        }
    },
    "severity": {
        "type": "Property",
        "value": "high"
    },
    "humanVerified": {
        "type": "Property",
        "value": false
    },
    "@context": [
        "https://smartdatamodels.org/context.jsonld"
    ]
}

Notes:

• Allowed values for severity are the following (from FIWARE Alert): informational, low, medium, high, critical
• humanVerified is our extension of the FIWARE Alert, indicating whether the alert has been verified by a human (true or false)