Communication Pattern
Each port type has a communication pattern. The communication pattern determines whether one-way or two-way (request-response) transmissions can take place on ports of the given type. For more information, see the Port Configuration Wizard in the UI guidance and developers API namespace reference.
Note
Different ports of the same type will always have the same communication pattern, but not necessarily the same communication direction.
See Also
How to Work with Port Types
Communication Direction
Using Ports in Orchestrations