There is no similiarity either. It is more like a cause and effect system.
Dialog design is used to form a dialog flow between two procedures or procsteps.
A tool in the Design Toolset that is used during External Design to produce Dialog Flow Diagrams. It automates the representation of the steps within a dialog and illustrates their sequence.
The transfer of control, and possibly data, between procedure steps in the same generated business system (internal flows) or between procedure steps in different business systems (external flows). There are two types of dialog flows: links and transfers.
Dialog design is the process to create dialog flows.