WHAT IS A Context Diagram? Illustration of the system boundary in its environment, and the external entities (e.g., people and other systems) that supply and receive information or materials to and from the system boundary Also known as: Scope Diagram

EXAMPLE

Step 1: Identify System Boundary Select an entity as a focal point Draw a circle Label the system boundary

Step 2: Identify User Roles Identify the entities that have direct interaction with the system boundary Draw a rectangle Label each role

Step 3: Information Flow Draw lines with arrowheads to show direction flow of information or material Inputs to the System Boundary Outputs from the System Boundary