SysML Block Definition Diagram - Distiller - Ports
An example of a SysML Block Definition diagram. This diagram shows that the top-level Distiller Block is composed of a number of Parts, namely the Blocks Heat Exchanger, Boiler and Valve. Each Block also shows its Ports, the type associated with the Port and the direction of flow, in or out, of the port.
Learn more: Creating Ports and Parts