Business Logic

Goal

Define business logic as the rules, algorithms, and workflows in software that govern how data is created, stored, and transformed so real business policies become automated actions.

Treat business logic as purpose-driven code. The key question is not where the code lives, but whether the code expresses a business rule, business decision, business constraint, or business workflow.

What Counts as Business Logic

Classify code as business logic when it does one or more of these things: