When you get started in BPM, the first step invariably is documenting your current, or as-is, process. You can gather the facts from process participants and process owners in a variety of ways – in a group, putting yellow stickies on the wall, or in separate interviews. But eventually you face the challenge of reducing that collected knowledge into a structured, semantically precise yet intuitively understandable, diagram – a process model.
The majority of process “models” in the wild are simply Visio diagrams, applying shapes and lines as the individual modeler sees fit.