What is hardware regression testing?

Sift compares new test data with a selected baseline Run or a group of historical Runs called a Family. Engineers align signals around a shared event, inspect differences in Explore, and use Family statistics to define expected behavior over time.

Family Rules evaluate a completed Run against those historical statistics and flag deviations for review. After a controller update, for example, an engineer could compare motor current during acceleration against a baseline built from representative prior tests. This provides a repeatable way to investigate changes in signal behavior after a design or configuration change.