Chapter 2 – Testing Throughout the SDLC
Lean – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A set of principles focused on maximizing customer value while minimizing waste, originally from Toyota manufacturing and applied to software development.
In simple words
Build only what customers value; cut everything that doesn’t add to that.
Exam tip
Lean is the philosophy behind many Agile practices like small batches and pull.
Related terms
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