DMN — Decision Model and Notation

OMG standard for modelling decision logic, especially for invocation from within frameworks/bpmn processes. Introduced in sources/2018-dumas-fundamentals-of-bpm (§4.4, §10.5.8).

Two levels

DRD — Decision Requirements Diagram; decisions, input data, knowledge sources, business knowledge models.
Decision Logic — typically expressed as decision tables with hit policies (unique, priority, first, collect, rule order, output order).

Typical use

Credit scoring rules
Eligibility checks
Routing / discount logic

Executable integration

A BPMN business-rule task invokes a DMN decision; the decision table returns an output that drives subsequent gateway routing. Both BPMN and DMN are operational-frame notations per the APM terminology.

frameworks/bpmn · frameworks/cmmn · concepts/framed-autonomy