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Designing for Unfamiliar Interfaces
Daniel SoltisCreative Technologist, Moving Brands
Status: Connected. Blue LED blinks every 200ms.
The tale of the dongle
Status:Network error. Blue LED blinks every 270ms.
The tale of the dongle
from Gestural Interfaces: A Step Backwards In Usability
“There are several important fundamental principles of interaction design that are completely independent of technology:
· Visibility (also called perceived affordances or signifiers)· Feedback· Consistency (also known as standards)· Non-destructive operations (hence the importance of undo)· Discoverability: All operations can be discovered by systematic
exploration of menus· Scalability. The operation should work on all screen sizes, small and large.· Reliability. Operations should work. Period. And events should not
happen randomly.All these are rapidly disappearing from the toolkit of designers.”
Donald A. Norman and Jakob Nielsenhttp://www.jnd.org/dn.mss/gestural_interfaces_a_step_backwards_in_usability_6.html
What do I mean byan unfamiliar interface?
Novel inputmethods
Novel inputmethods
Screen is limited, unusual, or not present
Novel inputmethods
Screen is limited, unusual, or not present
Distance between input and output
Disruptive, uncover opportunities and
problems, evocative,fun to make...
but low usability interferes with their potential
The tale of the gestural interface
affordance
The tale of the gestural interface
accidental inputs
The tale of the gestural interface
The tale of the gestural interface
dexterity
dexterity and endurance
The tale of the gestural interface
The tale of the intuitive interface
“Pictures Under Glass sacrifice all the tactile richness of working with our hands, offering instead a hokey visual facade.”
-Bret Victor, http://worrydream.com/ABriefRantOnTheFutureOfInteractionDesign/
expression vs convention
The tale of action at a distance
connecting cause and effect
The tale of the multisensory interface
comprehensible, for the right senses
The learning curve challenge
Curve
FUN?
Learnin
g
The learning curve challenge
Curve
FUN?
Learnin
g
familiarity transparencyprogressive disclosuretrust
CauseWhat can I act on and what do my actions mean?
EffectIs there feedback, can I perceive it, and what doesit tell me? What senses am I using?
The minority report problemDo I have the physical or cognitive skill to perform a task?
Learning curveHow much time am I willing to invest in learning this system? Do I trust that the eventual reward is worth it?
Challenges for users
Technical proof of concept
Hobbyist/fun
Technical feasibility
Uncovering new territory
Design concept
User-centred design
Design intention
Hindsight
vs.
Challenges for designers & inventors
Donʼt throw out the familiar. Conventions, metaphor, discoverability, consistency can all be helpful.
Pay particular attention to sensory and physical factors.
Provide feedback at the point of interaction, preferably with the same sense as used for the input.
Design with intention, user test, iterate, etc.
Meeting those challenges?