Annotations

Annotations are a concept which ‘annotate’ or ‘flag’ a datapoint in a timeseries.

Annotations are shown on the platform chart following this pattern:

They help visualizing metadata like events in a given point in time. An example of annotations in a chart is shown in the image below.

By hovering on a specific datapoint with annotations one can view the metadata of that datapoint.

Annotations are central to the platform's data-quality process: validation rules flag suspect datapoints by annotating them (see Meter Reads Processing — VEE), and when a rule produces more annotations than its configured threshold, a task is created automatically for human follow-up (see Anomaly Detection and Alerting).

See more technical information in Storing Timeseries from Rules