Abstract
Research on shape-changing interfaces has explored various technologies, parameters for shape changes, and transformations between shapes. While much is known about how to implement these variations, it is unclear what affordance they provide, how users understand their relation to the underlying system state, and how feedback via shape change is perceived. We investigated this by studying how 15 participants perceived and used 13 shape-changing buttons. The buttons covered several aspects of affordance, system state, and feedback, including invite-to-touch movements, two styles of transition animation, and two actuation technologies. Participants explored and interacted with the buttons while thinking aloud. The results show that affordances are hard to communicate clearly with shape change; while some movements invited actions, others were seen as a malfunction. The best clue as to button state was provided by the position of the button in combination with vibration. Linear transition animation for changes in button state was the best received form of shape-change feedback. We discuss also how these findings can inform the design of shape-changing interfaces more generally.
| Original language | English |
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| Title of host publication | Proceedings - the 34th Annual CHI Conference on Human Factors in Computing Systems |
| Number of pages | 12 |
| Publisher | Association for Computing Machinery |
| Publication date | 7 May 2016 |
| Pages | 2752-2763 |
| ISBN (Print) | 978-1-4503-3362-7 |
| DOIs | |
| Publication status | Published - 7 May 2016 |
| Event | 34th Annual CHI Conference on Human Factors in Computing Systems - San Jose Convention Center, San Jose, United States Duration: 7 May 2016 → 12 May 2016 Conference number: 34 |
Conference
| Conference | 34th Annual CHI Conference on Human Factors in Computing Systems |
|---|---|
| Number | 34 |
| Location | San Jose Convention Center |
| Country/Territory | United States |
| City | San Jose |
| Period | 07/05/2016 → 12/05/2016 |