The Process Modeling City (POEM /
BPMN tutorials, posters, examples)
BPMN = Business Process Modeling Notation
POEM = Process Oriented Enterprise Modelling methodology. For describing business processes, roles, aretefacts and their instances.
Process instance diagram enhances process model diagram on the following way: process roles are replaced with names, groups or organisations. Document templates are replaced by real document instances. Task pointer is introduced, which shows, which activity is currently being executed (similar as tokens in Petri nets.)