Building block view

The building block view is an architecture view that shows the static structure of a system – how its building blocks, and ultimately its source code, are organized. It is usually presented hierarchically, starting from the system’s context view and decomposing each building block into its own constituent building blocks, one level at a time.

Because it shows structure rather than behavior, the building block view is typically complemented by one or more runtime views, which show how those same building blocks cooperate at runtime in concrete scenarios.