The document discusses process modeling and identifies six key elements of a comprehensive process representation: 1) inputs, 2) activities performed by a performer, 3) outputs, 4) process resources and consumables, 5) undesirable inputs and outputs, and 6) feedback in and out. It argues that effective process modeling requires representing all six elements, including distinguishing between physical and logical flows, performers, and incorporating feedback loops. The six element model provides a complete way to analyze, communicate, and design processes.