User: How do I structure a data flow diagram for the CSMP platform?
Assistant: A DFD has external entities, processes, data stores, and data flows. Start with a context diagram.
User: Actually, I think you missed the level-0 decomposition. Why start at the context diagram first?
Assistant: The context diagram sets the system boundary before you decompose into level-0 processes.
Me: That makes sense — so for our operations team the boundary would include the vendor portal. Compare that to keeping it external.
Assistant: Good extension. Treating the vendor portal as internal changes your trust assumptions...
Me: Thanks!
