Process modelling with BPMN
BPMN is a standard for drawing business processes that managers and developers both understand. Analysts draw the current As-Is process to find problems and bottlenecks, then the proposed To-Be process with the new system.
| Event (circle) | Start with a thin line, end with a thick one. |
| Task | Rounded rectangle: work done by a person or system. |
| Gateway (diamond) | A decision or branch. |
| Sequence flow | An arrow giving the order of steps. |
| Lanes | One lane per role or department. |
Case studyAs-Is today: the student queues, orders verbally, the cashier writes it on paper and takes cash, and the barista reads a slip that can get lost. To-Be: the student orders and pays in the app, and the order reaches the barista directly: