ROI of UX Designer

Question 1

Definition of UX

Answer 1

ISO standards 9241-11 (International Organization for Standardization, 2018)
“a user’s perceptions and responses that result from the use and/or anticipated use of a system, product, or service.”
(agent = user, action = using), expectation, perception and response

Question 2

Explain Efficacy

Answer 2

efficacy = to complete a task successfully in a system (how well sth works)

• avoud frustrating users
• benefit customer retention rate
• low support costs
• saving development costs
• -> success rate

effectiveness = refers to real world conditions

Question 3

Explain Efficiency

Answer 3

= amount of time it takes to complete a task = steps/time/total number of tasks

• more pleasant use
• frees up user for other tasks or increased employee opportunity

Question 4

Design on Use Errors

Answer 4

precautionary principle

(# of errors) · (average repair time) · (employee cost) · (# of employees) = cost savings

forgiveness = opportunity to painlessly undo their action