Shift‑Left Testing in Practice: How to Catch Defects Early in the Requirements Phase
The article examines how a fintech loan‑risk system applied shift‑left testing—embedding quality checks such as Gherkin‑based living requirements, contract testing, static analysis, and chaos engineering—to intercept defects during requirements, design, and development, achieving 87% early defect detection, a 40% reduction in UAT time, and zero P0 incidents, while warning against common pitfalls.
