About Thresholds

Thresholds define the conditions required for a validator to consider a metric to be a data quality incident or anomaly. When the validator detects data that breaches the defined threshold, it creates an incident that you can inspect on the validator details page. Optionally, you can define rules to notify you about identified incidents and route the notifications to different channels, such as Slack or webhooks.

When creating a Validator, you must configure a threshold to identify data quality incidents. Validio supports the following types of thresholds:

• Fixed Threshold–Performs comparison operations between the metric and a specified numeric threshold. For example, you can define a fixed threshold to check that no values in the field "Age" are less than zero. For more information, see Configuring Fixed Thresholds.
• Dynamic Threshold–Automatically calculates thresholds for numeric metrics based on statistical methods and allows you to adjust the sensitivity, which is the range of accepted threshold values. For example, you can define a dynamic threshold to track the daily average of sales to detect anomalies. For more information, see Configuring Dynamic Thresholds.
• Difference Threshold–Monitors a metric and alerts when the metric value deviates from a specified absolute value or percentage value for consecutive windows. For example, you can track the mean of a numeric value and alert when the metric value has decreased by X percentage over two consecutive days. For more information, see Configuring Difference Thresholds.

For more information about reviewing and managing validator incidents, see About Validator Details and About Validator Incidents. For information on how to configure rules and channels to receive notifications when validator incidents occur, see About Notifications.