Six Sigma

Six Sigma is a disciplined way to reduce variation: define the problem, measure what’s really happening, analyse the cause, improve it, and control it so it stays fixed. I’m a certified Green Belt, and the DMAIC loop is quietly underneath how I run most things.

Stripped of the belts and jargon, it’s just intellectual honesty with a structure — measure before you opine, find the cause before you fix, verify the fix held. Product work badly needs more of that.