SHMUC Use Case  D2

Making Tea With Cold Water: (Ver. 1.0)

 

SHMUC prototype  >  D_Behaviour_Pattern_Abnormalities_Use_Cases  >  D2_Making_Tea_With_Cold_Water

 

Goal
Mary wishes to make a cup of tea

Actors
Mary, the Smart Home, Debbie

InitialState
Mary was at home alone.
 

Description
Mary wanted to make a cup of tea. She went to the kitchen and the following sequence of sensor observations was detected:

go to sink-bench
turn on tap
fill kettle
turn off tap
boil water
put tea in pot
turn on tap
fill pot with water

pour tea into cup
stir

Based on this, the system needed to identify the behaviour. However, it does not directly match any of the stored behaviours; the closest match is to the tea making activity.

Norm
The tea-making sequence conforms to the syntax specified by the tea-making Finite State Machine

Outcome
The system reports an abnormal behaviour in a message that is left for Mary.

System Design Implications
In this use case, an essential property of the tea-making behaviour has been replaced by something inappropriate. The additional behaviour is interesting in that it does not conform to the norm, and probably problematic, in that it may indicate that Mary is confused. However, this classification (probably problematic) is an easy one for us to reach, based on our world-knowledge appreciation that a cup of tea made with cold water will taste particularly foul, and that anyone who makes tea that way may be confused. However,  the system has no such model. How may it come to a similar  conclusion?