Notation reference
Two of the languages here are standards with defined meaning rather than styles: BPMN 2.0 and DMN 1.3. Their symbols are not interchangeable, and a diagram that uses the wrong one says something the author did not intend.
These pages are the lookup: what each symbol means, and which connections are legal.
#In this section
BPMN notation referenceWhat every BPMN 2.0 symbol means: events, tasks, gateways, flows, pools, data and artifacts.DMN notation referenceWhat the DMN 1.3 elements mean: decisions, input data, knowledge models, requirements and table structure.
The notation is the meaning.
