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Alan Dix
aQtive limited and Staffordshire University
http://www.hiraeth.com/alan/
http://www.websharer.com/crackers/
Hazy, Crazy, Lazy Days are Overtime for designers to think
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unlikely bed fellows?
mobile
broadband• different market• different technology• different constraints
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ideas!
incongruity + analysis
= innovation
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outline
• the past• let it all hang loose
• the future• transformative technology
• the present• but looking forward
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user focus
• from want to use the computer
• through want to do things using the computer
• to want to do things
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the past
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if a computer were a restaurant
• 1960s & early 70s– rather inferior pizza delivery service
• late 70s and early 80s– mind your Ps and Qs and stick to the menu
• late 80s and 90s– there’s the kitchen, get on with it
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interaction focus
language command/menu based
action GUI
interaction?
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the screen
let it all hang out!
don’t think what’s needed? when its needed?
just put it all there … … and let the user decide
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bandwidth
(mobile/broadband difference?)
computer user
use screen to trade bandwidth?
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trade bandwidth? - NO!
information per click ~ log(nos buttons)
Fitts’ law - time ~ log(area target/area screen)
=> input bandwidth approx constant
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real screen gains
relevant actions - screen changeschanging contextual ‘alphabet’ = bigger bandwidth
rapid eye movementhow much can YOU see?
the eye is interactive!
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the future
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PopuNet
everywhere
everyone
everywhen
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products for PopuNet?
what are they? …
... I wish I knew!
include:– e-shopping (rather than e-buying)– sharing– fun!
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everywhere technology - thrift is in
space: mobile - small screen TV - use screen for more important
can’t squander screen space
time: consumers want to live their lives if it takes time, they won’t do it
can’t squander user’s time
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everywhere technology - thrift is in
space: can’t squander screen space
time: can’t squander user’s time
contextual interfaces
offering the right thing when its needed
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the present
understanding context
static and dynamic
appropriate intelligence
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static context
• understand the task!
• traditional task analysis - what is done
• now want - what needs to be known
make tea
boil kettle brew pour
add tea add water
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what needs to be known?
look at flow chart
decision = information need
mainscreen
removeuser
confirm?
add user
deleterecord
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static context
• understand the task!
• traditional task analysis - what is done
• now want - what needs to be known
make tea
boil kettle brew pour
add tea add water
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dynamic context
aQtive onCue
• watches while the user works context = clipboard
• suggests web services
• and desktop applications
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appropriate intelligence
• simple heuristics
• right much of the time
• valuable when its right
• no cost when its wrong!
appropriate interaction
e.g. Excel button, but not …
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more ...
• me:– cyberspace, mobile etc.
http://www.hiraeth.com/alan/topics/
– PopuNethttp://www.hiraeth.com/magisoft/PopuNET/
• aQtive:– theoretical background and use in research
http://www.aqtive.com/community/research/
– aQtive home (including cracker link)http://www.aqtive.com/