University of Florida Sequence Diagram of the Perseverance Rover Practice

Skills:

• Identify the different timelines at which different objects are active
• Identify messages that an object sends to another and what the responses to these messages should be
• Identify how the flow of the timeline should change based on the message interaction
• Create a sequence diagram depicting the timelines, messages, responses, and behaviors

Task:

For this lab, think about a few scenarios of communication and control of Perseverance or the Freenove rover and identify at least 3-4 objects that interact through at least 5-6 steps of interaction and build a sequence diagram for it. Make sure it is long enough for you to think through the complete sequence of operations and the actors at each level of operation. As an extra layer of creativity, think of a potential security threat that could arise and how the system interaction handles such a threat. Please note that your diagram must be as complete as possible to implement your specific use case.

Next, think of a more complex activity within your model, and build an activity diagram for the activity you choose.

Like in Lab 2, you will submit just a Word document containing your specification, and your interaction and activity diagrams (and use-case diagram if you chose above).

power
idle
navigation
Power on
entry/turn_on
do/sysetem_check
exit/turn_off
do/ receive_command
exit/perform command
entry/run_navcam
do/receive_command
navcam
do/active_sensors
exit/proceed navigation
Power off
move forward
move right
entry/clear passage
do/move forward
exit/obstruction
entry/clear passage
do/move right
exit/obstruction
stop
spinning
entry/obstruction
do/receive command
exit/new direction
entry/clear passage
do/spin
exit/obstruction
move backward
move left
entry/clear passage
do/move backwards
exit/obstruction
entry/clear passage
do/move forward
exit/obstruction