UML and sequence diagrams

1.1) Show how a Set-speed command flows through the refined class structure provided in the model train controller of the figure below, moving from a change on the front panel to the required changes on the train.

a. Show it in the form of a UML collaboration diagram.

b. Show it in the form of a sequence diagram.

1.2) Show how an Estop command flows through the refined class structure provided in the model train controller of the figure below, moving from a change on the front panel to the required changes on the train.

a. Show it in the form of a UML collaboration diagram.

b. Show it in the form of a sequence diagram.

(Please do not use the examples that can be found in notes online as they are wrong and incomplete)

Train set Documentation only 1..t Console Train Motor interface PanelFormatter Transmitter Receiver Controller Knobs Sender Detector Pulser* Physical object FIGURE 1.18 Train set Documentation only 1..t Console Train Motor interface PanelFormatter Transmitter Receiver Controller Knobs Sender Detector Pulser* Physical object FIGURE 1.18