User Experience¶
Literature:
- Bargas-Avila and Hornbæk - Old wine in new bottles or novel challenges? (PDF)
- Kjeldskov et al. - Instant Data Analysis (PDF)
Recall the definition of Usability in Lecture 07.
User Experience:
From ISO 9241-210
A person's perceptions and responses that result from the use or anticipated use of a product, system or service...
This is a broader term than usability.
Emotion is a key aspect!
How is UX data collected?¶
AttrakDiff2¶
From Marc Hassenzahl et al.
Lavie and Tractinsky¶
Purely aesthetics.
Pitfalls?¶
What does the participant remember most from the interaction?
If he had a bad interaction in the end, is this what is reflected in the questionnaire?
Or is it the mean of the whole interaction?
Emotions¶
What are emotions?
James-Lange (1884):
- "... the result of physical changes in autonomic and motor functions"
- Sensory input creates bodily responses
- Awareness of bodily changes constitutes an emotion.
Scherer (2005):
- Mobilization and synchronization of organismic subsystems
- A response to a cognitive evaluation of stimulus events
- Events are "of major concerns for the organism"
Moods/Attitudes vs. Emotions (Scherer, 2005)
- Emotions are intense and short-lived (connected to specific events)
- Moods are of low intensity and may last for days
6 Basic Emotions
Emotion Graph
How can we measure emotions?¶
Self-Assessment-Manikin (SAM)¶
Studies show that when we evaluate emotions in retrospect, the major movements in emotions will dominate.
- If one really cool thing makes us happy, this will dominate the evaluation
Galvanic Skin Response (GSR)¶
Used during the interactions
Electromyography (EMG)¶
Facereader Software¶
Cued Recall Debrief¶
- Use the graph data to pick points of interests.
- Show the user video clips of the POI's
- Ask them to reflect on what happens