The document introduces WatchConnect, a toolkit for prototyping smartwatch-centric cross-device applications. WatchConnect abstracts input, output and processing into high-level objects, events and UI components to allow for rapid prototyping of applications involving a smartwatch and other devices. It aims to help explore the design space of next generation watch-centric interactions within a user's entire device ecology. Future work could include support for real smartwatches, collaborative setups on shared surfaces, and other devices to create more elaborate device ecologies.

1. WATCHCONNECT
A Toolkit for Prototyping Smartwatch-Centric Cross-
Device Applications
Steven Houben and Nicolai Marquardt

10. Single
device
Multiple
devices

11. UI Beaming (BSN2014)

12. Duet (CHI2014)

13. Design multi-device interfaces
Gesture and posture recognition
Device connectivity and data transfer
Data processing and piping
Sensor and hardware configurations

14. Design multi-device interfaces
Gesture and posture recognition
Device connectivity and data transfer
Data processing and piping
Sensor and hardware configurations

15. Design multi-device interfaces
Gesture and posture recognition
Device connectivity and data transfer
Data processing and piping
Sensor and hardware configurations

16. Design multi-device interfaces
Gesture and posture recognition
Device connectivity and data transfer
Data processing and piping
Sensor and hardware configurations

17. Design multi-device interfaces
Gesture and posture recognition
Device connectivity and data transfer
Data processing and piping
Sensor and hardware configurations

18. Design multi-device interfaces
Gesture and posture recognition
Device connectivity and data transfer
Data processing and piping
Sensor and hardware configurations

19. Building smartwatch-
centric cross-device
interactions techniques
and applications remains
a challenging task.

25. 1
Watch input and output space

26. 2
Screen or display input and output space

27. 2
Screen or display input and output space
1

28. On the watch through physical touch or manipulation

29. Above the watch through depth and movement

30. In the watch through motion detection

31. Identifying the touch owner

32. Detecting personalized physical touch and manipulation

33. Above the display depth and movement.

34. Watch armband
Wired
Connection
Display
Light Sensor
Touch Sensors
Distance
Sensor

37. Abstracts input, output and processing into high
levels objects, events and UI components to allow
for rapid prototyping.

38. Abstracts input, output and processing into high
levels objects, events and UI components to allow
for rapid prototyping.

40. Applications

41. Data Transfer

43. Map Interaction

45. Watch-aware UI

47. UI Beaming

49. Instrumental e-reader

51. Explore the design space of the next generation
of watch-centric interactions with the entire
device ecology of users.

55. Include support for real smartwatches
Support collaborative setups on shared
surfaces
Include other devices to create more
elaborate ecologies.
Deploy and test the toolkit with designers

56. WATCHCONNECT
A Toolkit for Prototyping Smartwatch-Centric Cross-
Device Applications
Steven Houben and Nicolai Marquardt