Physical data flow diagrams provide detailed implementation information. They may reference current systems and how they operate, or may project the desired end-state of a proposed ... specific use ...

which the message marked as 2 in the diagram in Figure A illustrates. There is no restriction on the direction of messages. Messages on sequence diagrams can flow from either left to right or ...

Circuit schematic diagrams used in electronics are ideal examples of a graphical ... The process diagram represents a sequence of interactions as a state transition diagram, but all combinations ...