General guidelines for business process modeling
Before we move further, it's important to understand some of the rules that are helpful while modeling and designing our business processes. In this section, we will look into a few main modeling rules from the perspective of modeling a process and the instructions specified by BPMN.
Rule 1 – process models should provide aid in process understanding
A good process model should allow the overall process flow to be visible at one glance either from left to right or from top to bottom. To achieve that, a modeler can follow these basic rules:
- Aim for a minimum of four and a maximum of 15 tasks in a process diagram
- Aim for a maximum of three or four levels in a hierarchy
A good model gives you an intuitive ...