Test Automation Strategy: The Testing Pyramid That Ships

Business logic and edge cases at unit level; contracts and data flows at API/integration level; only the critical user journeys (login, checkout, core workflow) at E2E.

Coverage on critical paths, defect-escape rate, and pipeline duration — 90% coverage of getters is vanity; 90% of the money path is safety.

Skipping the discipline this article describes until an incident, audit, or stalled project forces it — every practice above is cheaper adopted early than retrofitted under pressure.