Blog Posts BPMN DMN

Lookup Tables in DMN

Blog: Method & Style (Bruce Silver)

Lookup tables are a common logic pattern in decision models. To model them, I have found that beginners naturally gravitate to decision tables, being the most familiar type of value expression. But decision tables are almost never the right way to go. One basic reason is that we generally want to be able to modify the table data without creating a new version of the decision model, and with decision tables you cannot do that.

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