How to Construct Process Models
The Context Diagram
- A strategy follows for determining the system’s boundary and scope: (continued)
- Step 3: Ask your end-users what responses must be produced by the system.
- These are the net outputs to the system.
- For each net output, determine its destination.
- Destinations may be external agents.
- Step 4: Identify any external data stores.
- Many systems require access to the files or databases of other systems.
- Step 5: Draw your context diagram from all of the preceding information.