Definitionv1DF-552
A/B testing
a controlled experimental method for comparing two versions of a system by running them simultaneously under equivalent conditions and measuring their performance against pre-defined metrics to determine which performs better based on data rather than intuition
Why This Is a Definition
This definition establishes the precise semantic boundary of 'A/B testing' by identifying its genus (controlled experimental method) and differentia (comparing two versions, running simultaneously, equivalent conditions, pre-defined metrics, data-driven determination). It distinguishes A/B testing from mere intuition or preference and specifies the essential structural requirements that make it valid.