This entity models an alert and could be used to send alerts related to traffic jam, accidents, weather conditions, high level of pollutants and so on. 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 or a high level of pollutants measure, additionally it could be the fall down of a patient or a car driving in the opposite direction.
Some examples of context data are: type of alert (traffic, weather, security, and pollution, etc.), severity, location and so on
Link to the interactive specification
Link to the specification
Link to the example (keyvalues) for NGSI v2
Link to the example (normalized) for NGSI-V2
if you have any issue on this data model you can raise an issue or contribute with a PR