This site is for the Mark & Naomi Iliff family. For Mark’s work persona go to Talespinner
A/B testing, in which users of a system, product or idea under development are asked “is it better like this… or like this?”
From the CBT & Performance Support System guru Gloria Gery
Mark – 1980s
Mark Iliff – owner
The expression predates the general adoption of “A/B testing” by some decades