{"id":14376,"date":"2022-06-20T11:45:00","date_gmt":"2022-06-20T09:45:00","guid":{"rendered":"https:\/\/mid.de\/blog\/uncategorized\/was-ist-dmn\/"},"modified":"2026-01-28T13:48:50","modified_gmt":"2026-01-28T12:48:50","slug":"what-is-dmn","status":"publish","type":"post","link":"https:\/\/mid.de\/en\/blog\/dmn\/what-is-dmn\/","title":{"rendered":"What is DMN (Decision Model and Notation)? Briefly explained!"},"content":{"rendered":"

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Imagine you really want to go on vacation. You dream of the sound of the sea, the scents of oriental markets, or expeditions through the jungle. You desperately need a break, but unfortunately you have only limited vacation days and a limited budget. Which trip is the right one to relax and recharge?<\/p>\n

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We face such or similar decisions every day, both in business and in everyday life at home. The key question is always: How do I decide \u201ccorrectly,\u201d taking all relevant factors into account?<\/strong> And the crucial follow-up is: How, or rather why, did I decide that way? To retrace a decision, it\u2019s important to know the exact reasons behind it. Knowing the decision path alone is not enough. The resulting rules must be documented in the workplace so decisions can be understood and reproduced by others.<\/strong> In business, people often use flowcharts that feature highly complex nested structures and are only moderately readable.[\/vc_column_text][vc_column_text css=””]<\/p>\n

Example: Vacation selection with BPMN<\/h3>\n

Let\u2019s take our vacation example using the process modeling notation BPMN. Based on the level of exhaustion and the remaining vacation days available, it should be decided which type of vacation is best.<\/p>\n

[\/vc_column_text][vc_single_image image=”14334″ img_size=”full” add_caption=”yes” onclick=”link_image” css=””][vc_column_text css=””]The decision-making is represented by many branches that create a large web of options. These or similar modeled decisions appear in almost every company. They are hard to read and even harder to keep consistent. That is exactly why the Object Management Group (OMG) introduced a new standard for clear decision modeling \u2014 Decision Model and Notation, or DMN.<\/p>\n

What is DMN?<\/h2>\n

Decision Model and Notation provides a common foundation within an organization to document decision rules. The goal of DMN is to create a common notation that is easy to read and understand across all business areas \u2014 from the business analyst who documents decision requirements, to the technical developer who automates the decision rules in processes, to the business unit that applies and monitors the decision rules.<\/p>\n

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Why DMN?<\/h2>\n

A short list showing what DMN is and why it\u2019s used:<\/p>\n