How often and how deeply have you used BPMN notation? What levels of processes did you describe, and how complex were the diagrams you created?

BPMN (Business Process Model and Notation) was regularly used to describe business processes at various levels of detail. Usually, diagrams were created at the process level (process chains), as well as more detailed subprocesses with branches and events.

The diagrams were of medium and high complexity, included tasks, events, gateways (conditional branches), as well as pools and lanes to separate roles and systems. This allowed for clear visualization of process logic and interaction among participants.

Example: a process diagram for order processing, showing stages from receiving the application to shipment, with checks and parallel tasks.