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Use Cases

Version 18.1 by Simran Karnani on 2022/03/07 12:12

UC001: User prevented from going out

Objective OB01: Prevent user from going out
TDP TDP: TITLE
Actors Person with Dementia (PwD), Pepper
Pre-condition User is restless and wants to take a walk
Post-condition User stays home
Action sequence Figure

UC steps:
1. PwD walks to door to go out
2. PwD meets Pepper who is standing in front of the door
3. Pepper asks PwD where he/she is going
4. PwD interacts with Pepper
5. Pepper plays music and distracts user
6. Robot invites user to stay inside to perform an activity
7. User complies and turns away from door

UC002: User not prevented from going out

Objective OB02: Alert caretakers of user that user has gone out
TDP TDP: TITLE
Actors
Pre-condition User is restless and wants to take a walk
Post-condition Caretakers are alerted of the fact that the user has left
Action sequence Figure

UC steps:
1. User walks to door to go out
2. User opens door
3. Door sensor is triggered
4. In response to door sensor trigger, robot navigates to door
5. Robot attempts to interact with user
6. User ignores robot and walks outside
7. Robot alerts caretakers that the user has done so
8. Caretakers take actions necessary to protect and/or locate user
UC step Requirements Claims IDP
1RQ001: TitleCL001: TitleIDP: Title
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UC001: Guide user when going out

Objective OB03: Guide the user when going out
TDP TDP: TITLE
Actors
Pre-condition User is restless and wants to take a walk
Post-condition Robot accompanies the user to a familiar location
Action sequence Figure

UC steps:
1. User walks to door to go out
2. User opens door
3. Door sensor is triggered
4. In response to door sensor trigger, robot navigates to door
5. Robot starts to play some sounds corresponding to a familiar location
6. User listens and recognizes to sound and remembers the route tot that location
7. Robot accompanies the user on his/her stroll

UC004: User is reminded of their current situation

Objective OB01: Prevent user from going out
TDP TDP: TITLE
Actors
Pre-condition User is under the impression they need to be somewhere and intends to go there
Post-condition User remembers they need to stay here
Action sequence Figure

UC steps:
1. User walks to door to go out
2. User opens door
3. Door sensor is triggered
4. In response to door sensor trigger, robot navigates to door
5. Robot interacts with user
6. User focusses on robot
7. Robot invites user to stay inside
8. User argues they need to go to work and they are already late
9. Robot sings or plays a song associated with retirement
10. User is reminded of their retirement and realises they do not have to go to work
11. Robot invites user to stay home and user complies