E2E Test (End-to-End Test)A test that simulates real user scenarios to validate full system flow.
Edge CaseA rare or extreme condition that tests the limits of a system or feature.
Engagement RateThe percentage of users who interact with a feature or content.
Event TaxonomyA structured system for naming and categorising events across products.
Event TrackingCapturing specific user actions (e.g. clicks, scrolls, signups) for analysis.
Experiment HoldoutA group of users excluded from changes in an experiment to serve as a control.
Experimentation VelocityHow quickly a team can ship and learn from experiments.