2f Mental Models ***

Question 0

Describe how a mental model can be applied to the design of a user interface. (4 marks)

Answer 0

mental models vary between users (1) therefore the interface must reflect the perception of the majority of users (1), auditory indicators (1) provide prompts for the user (1), visual indicators (1) such as red for bad, green for good can be applied by the designer into error messages (1), icons on toolbars (1) graphics that give a preconception of use (1)

Question 1

Describe a mental model. (2)

Answer 1

a model the end user creates in their mind /preconceived ideas(1) of how the system should work (1), preconceived ideas/experiences (1) related to software they are using, Example (max 1) e.g. red is bad, green is good

Question 2

Explain the importance of matching the online ordering interface to the user’s mental model. (2 marks)

Answer 2

users bring their own preconceptions to the interface (1) interface needs to take account of this so users can operate it successfully (1),

Question 3

Explain, using examples, how a client’s mental model can be used in the design of the user interface for the on-line appointment system. (8 marks)

Answer 3

mental models vary between users therefore the interface must reflect the perception of the majority of users(1) / maintain an appropriate/natural way of completing an action(1), auditory indicators provide prompts for the user (1),visual indicators such as red for bad, green for good can be applied (1) by the designer into error messages(1), consistent use of graphics/wording increases confidence of users