Data flow diagram (DFD)
Processes, data stores, external entities and data flows. Every process has at least one input and one output; every store and entity is connected to a flow.
- Use when
- Any system where information moves: IT integrations, reporting, or paper-based business flows.
- Avoid when
- Showing sequence or timing: DFD does not show order.
- Source
- Yourdon & DeMarco; Gane & Sarson
- Level
- A · standard
For agents · MCP
explain_node({ "id": "m.dfd" })