This talk will reflect on the role of BPMN from a software engineering perspective. It will then take a reverse tour through the BP-M-N acronym: N-What does the notation of BPMN tell us, and how can it be optimized via eye-tracking experiments? M-The model aspect will be discussed with respect to model theory and the question what is considered relevant in BPMN - and what not. BP-This final issue leads to a proposal for covering more human-oriented aspects by complementing BPMN with vision videos, a concept that was developed at Leibniz Universität Hannover.