Synopisis
- mobile & broadband – unlikely bed fellows?
- different market, different technology, different constraints
- ideas!
- incongruity + analysis = innovation
- outline
- the past - let it all hang loose
the future - transformative technology
the present - but looking forward
- user focus
- from - want to use the computer
through - want to do things using the computer
to - want to do things
the past
- 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
- interaction focus
- language - command/menu based
action - GUI
interaction?
- 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
- bandwidth
- (mobile/broadband difference?)
computer  user BIG
user computer tiny
use screen to trade bandwidth?
- trade bandwidth? - NO!
- information per click ~ log(nos buttons)
Fitts’ law - time ~ log(area target/area screen)
=> input bandwidth approx constant
- real screen gains
- relevant actions - screen changes
changing contextual ‘alphabet’ = bigger bandwidth
rapid eye movement
how much can YOU see?
the eye is interactive!
the future
- PopuNet
- everywhere
everyone
everywhen
- products for PopuNet?
- what are they? ...
... I wish I knew!
include:
e-shopping (rather than e-buying)
sharing
fun!
- 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
...
contextual interfaces
offering the right thing when its needed
the present
-
static context
- understand the task!
traditional task analysis - what is done
now want - what needs to be known
- what needs to be known?
- look at flow chart
decision = information need
- static context
- understand the task!
traditional task analysis - what is done
now want - what needs to be known
- dynamic context
 aQtive onCue
watches while the user works - context = clipboard
suggests web services and desktop applications- 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 ...
|
