DMN

DMN is the industry standard for modeling and executing complex business logic through decision tables and FEEL expressions.

Decision Model and Notation (DMN) 1.5 provides a common visual language to bridge the gap between business analysts and technical developers. By using Friendly Enough Expression Language (FEEL), teams define logic in structured decision tables that execute directly within engines like Camunda or Red Hat Kogito. This approach eliminates hard-coded if-else nests in favor of transparent, versionable requirements that handle thousands of inputs per second with mathematical precision.

https://www.omg.org/spec/DMN/