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Shift-Left Testing
6.1🔒What Is Shift-Left?Shift-left means moving testing activities earlier in the development lifecycle. Instead of finding bugs after code is written, prevent…
6.2🔒The Cost of Late Bug DetectionThe cost of fixing a bug increases exponentially the later it is found:
6.3🔒Practical Shift-Left ActivitiesQA reviews user stories before sprint planning, flagging ambiguities and missing edge cases.
6.4🔒Shift-Left in Practice: A Sprint TimelineNotice that QA is active from Day 1, not waiting until Day 7 when "code is ready for testing."
6.5🔒Measuring Shift-Left Effectiveness
6.6🔒Common Resistance and How to Address ItCommon Mistake: Implementing shift-left by adding more meetings without removing any downstream work. Shift-left should reduce the total…
6.7🔒Q&ASelf-Assessment Quiz: Chapter 61. What does "shift-left" mean, and why does it matter? 2. What is the approximate cost multiplier for fixing a bug in production versus…
6.8🔒Exercises: Chapter 6[Beginner] Exercise 6.1: Pick 3 stories from your next sprint and review them for testability before planning.
6.9🔒Career Translation- Led a shift-left testing initiative that moved defect detection from 80% in testing phase to 45% in requirements and design phases within…
6.10🔒Q&AInterview Depth CheckPrompt: You review a user story during backlog refinement and find that the acceptance criteria are vague: "The system should handle errors…