why consistency is not everything, and seamless task migration is key
DESCRIPTION
Manas Tungare, Pardha S. Pyla, Manuel Pérez-Quiñones; Multiple User Interfaces: Why Consistency is Not Everything, and Seamless Task Migration is Key.; Proceedings of the CHI 2006 Workshop on The Many Faces of Consistency in Cross-Platform Design..TRANSCRIPT
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consistency
the many faces of
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Why Consistency is Not Everything, and Seamless Task Migration is Key
• Manas Tungare
• Pardha S. Pyla
• Manuel Pérez-Quiñones
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Consistency
• Data
• Functionality
• Interaction
• Behavioral
• Context
• Definitions?
● also,
● Task Disconnects
● Seamless Task Migration
● A brief introduction
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Examples
• Features, not products
• Certain forms of consistency present
• Others, absent
• What makes it good?
• ... Or bad?
Consistency
? Data
? Functionality
? Interaction
? Behavioral
? Context
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iTunes + iPod
• iPod Shuffle
• Podcasts
Consistency
✔ Data
Functionality
✘ Interaction
Behavioral
Context
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Address book
• Search / browse
• Large type vs. ‘Call’
Consistency
✔ Data
Functionality
✘ Interaction
Behavioral
Context
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Calendar
• Cellphone UI
• Voice access
Consistency
✘ Data
✔ Functionality
✘ Interaction
Behavioral
Context
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Alarms
Consistency
* Data
Functionality
✘ Interaction
✔ Behavioral
Context
Rrrrrrrrrring!!!• Chaos
• Support for Task Migration?
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Maintaining context
• Resume playback
• Resume editing (e.g. vi)
Consistency
✔ Data
✘ Functionality
✘ Interaction
Behavioral
✔ Context
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Task Disconnects
• The break in continuity that occurs due to the extra actions outside the task at hand that are necessary when a user attempts to accomplish a task using more than one device.
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Design Issues
• Holistic Interaction Design
• ... for an ecosystem of devices
• Task & data partitioning
• Minimize planning activity & cognitive effort
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Conclusion
Seamless Task Migration as a higher goal than consistency
for successful Multiple User Interfaces
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Questions & Discussion
?
?