Process Modelling is part of an approach to structuring businesses that has been heavily influenced by Total Quality Management and Lean methodologies.
Essentially, Process Modelling is capturing the steps that your business takes in order to deliver some product or service. The steps are captured visually in diagrams using the
BPMN 2.0 modelling standard as opposed to text because paragraphs of text can be interpreted differently by people whereas diagrams are more objective.
Also diagrams are more engaging for teams to view and agree (or disagree) on.
A baseline model of how things operate today is called the ‘AS-IS’ model for a particular process.