How to Construct Process Models
The System Diagram
- When creating a system diagram, do not consolidate data stores – otherwise, you will create balancing errors between the system and event diagrams.
- You may elect to consolidate some data flows (from event diagrams) into composite data flows on the system diagram.
- If you do, be sure to use junctions on the event diagrams to demonstrate how the elementary data flows are derived from the composite data flows.