Business context

Business context shows a system as a single black box within its environment, seen from a business perspective. It specifies every communication partner the system has — users, other IT systems, external services — together with the domain-specific inputs, outputs, and interfaces each partner exchanges with the system.

It deliberately excludes the technical detail of how those interactions are implemented, such as the specific protocols or interfaces used. That detail belongs instead to the technical context, which addresses the same system boundary from an implementation perspective.

Business context and technical context together make up the context view in the arc42 architecture documentation template.