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1. Explain the action flow in the below activity diagram [5 marks] act Manually intruder Intruder Intel - [else] [else] Intel Intruder Intel Select Camera Move Joystick now camera current camers current joystick vector (stream) ill commands (stream) Issue Camera Commands nan commands Pan Camera (stream) Answer. 2. Explain the state transition diagram below [5 marks] stm Surveillance System Tum Off "Yes")/ Confirmation Shut Down Cameras Response (r) shutting down Startup after (60s) Display "Timed Out Status [r=="No"] Shutdown [in (logged on)] Confirm Shutdown initializing (init OK) Request System operating KO entry/Display "Operating" Status do/Monitor Site [not init OK] exit/Display "Shutdown" Status System OK diagnosing Answer 3. (Bonus Question) Explain the sequence of interactions in the below Sequence Diagram. [Bonus 5 marks] Alarm System [gater]] Parimeter Sensor ref Setup Systom loop alt {normal status) Route Maintenance Raise Alam() ref System Answer.

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Answer 1
Activity diagram is another important diagram in UML to describe the dynamic aspects of the system. Activity diagram is basically a flowchart to represent the flow from one activity to another activity. The activity can be described as an operation of the system.
There are two systems in the activity diagram named advanced operator and surveillance system. There are two activities need to be functioned by security guard named select camera and move joystick accordingly when an intruder appears. Camera signal and the joystick signal then will be fed in to surveillance system which consists of Camera command protocol. It will issue camera commands by inletting signals from joystick and new camera to tilt and pan the appropriate camera...

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