--- title: Set Up Anomaly Detection in Collate for Data Quality slug: /how-to-guides/data-quality-observability/anomaly-detection/setting-up --- # Steps to Set Up Anomaly Detection ### 1. Create a Test from the UI - First, select the dataset and navigate to the **Tests** section in the Collate UI. - Define your test parameters. You can either create a **static test** (e.g., "no null values" or "data should not exceed a certain range") or configure **dynamic assertions** to let the system learn from the data. {% image src="/images/v1.8/how-to-guides/anomaly-detection/set-up-anomaly-detection-1.png" alt="Manual Configuration of Tests" caption="Manual Configuration of Tests" /%} {% image src="/images/v1.8/how-to-guides/anomaly-detection/set-up-anomaly-detection-2.png" alt="Manual Configuration of Tests" caption="Manual Configuration of Tests" /%} ### 2. Configure Manual Tests - For more controlled monitoring, set up **manual thresholds** (e.g., sales should not exceed a maximum value of 100). This provides specific control over data validation criteria. ### 3. Enable Dynamic Assertions - For data that naturally fluctuates or evolves, enable **dynamic assertions**. Collate will start profiling your data regularly to learn its normal behavior. - Over time (e.g., five weeks), the system will establish expected value ranges and detect any deviations from these patterns. {% image src="/images/v1.8/how-to-guides/anomaly-detection/set-up-anomaly-detection-3.png" alt="Manual Configuration of Tests" caption="Manual Configuration of Tests" /%} ### 4. Monitor Incidents - After configuring tests, monitor for any **incidents** triggered by anomalies detected in the system. - Investigate significant spikes, drops, or unusual behaviors in the data, which may indicate system errors, backend failures, or unexpected external factors. {% image src="/images/v1.8/how-to-guides/anomaly-detection/set-up-anomaly-detection-4.png" alt="Manual Configuration of Tests" caption="Manual Configuration of Tests" /%} ## Best Practices - **Use Static Assertions for Simple Rules**: For basic data validation, such as preventing null values or enforcing a minimum threshold, static assertions are effective and straightforward to configure. - **Leverage Dynamic Assertions for Evolving Data**: When dealing with datasets that naturally fluctuate (e.g., sales or user activity), dynamic assertions can save time and ensure incidents are only triggered when significant anomalies occur. - **Regularly Review Incidents**: Stay on top of incidents generated by anomaly detection to promptly identify and address data quality issues. - **Combine Manual and Dynamic Methods**: For datasets with well-defined boundaries and evolving characteristics, combining manual thresholds and dynamic assertions provides comprehensive anomaly detection coverage.