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Shift-Left & Shift-Right Testing: A Balanced Approach to QA

05 Mar 202501040

🔄 Shift-Left Testing:

  • Focuses on early defect detection by integrating testing at the beginning of the SDLC.
  • Prevents issues rather than fixing them later, reducing costs and improving software quality.
  • Uses practices like unit testing, static code analysis, and CI/CD automation.


🔄 Shift-Right Testing:

  • Involves testing in production to monitor real-world performance and user experience.
  • Uses techniques like canary releases, A/B testing, and chaos engineering to ensure stability.
  • Helps identify post-deployment issues that may not surface in traditional testing.


📌 Why does it matter? A combination of both ensures faster, more reliable, and high-quality software delivery by preventing defects early and continuously monitoring performance in production.

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