Decision Modelling Notation¶

Decision Modelling Notation (DMN) is an international standard for modelling rules resulting in certain outputs given certain input values. DMN is a machine-readable XML-based format which typically defines one or more decision tables that can be evaluated.

In Open Forms it is possible to use form logic rules that call a DMN engine to evaluate decision tables. The result of the evaluation can be used to update the value of variables in the form.