context-diagram
Installation
SKILL.md
Purpose
Create context diagrams that show the system as a single process with all external entities and data flows. Use this to establish a clear system boundary, identify all external interfaces, and provide a visual scope definition for stakeholder alignment.
This is the highest level of a data flow diagram (DFD Level 0). The system is one bubble. Everything else is external. Every arrow is a data flow that needs requirements.
Key Concepts
Context Diagram Elements
| Element | Symbol | Represents |
|---|---|---|
| System | Single circle/bubble | The system being built (only one) |
| External Entity (Terminator) | Rectangle | Users, external systems, devices, organizations |
| Data Flow | Labeled arrow | Data moving between system and external entity |