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InContext at CHI 2010

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Hugh Beyer

on 16 April 2010

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Transcript of InContext at CHI 2010

CHI 2010 Good Interruptions
while driving Bad Recall is more distracting than interactive talk
Callers can't modulate their interruptions based on your situation
Documenting Transitional Information Water flow Appalling Multitasking and Monotasking Studied interruptions while doing tasks People will.
D'oh! Recovery from Interruptions It's not about remembering
It's about reconstructing the entire mental state
This takes longer
:-( Multitasking Bar We added a task bar to Firefox
One variant kept tasks separate
Another recovered tasks across sessions
Users liked it. Fewer web pages opened
Less navigation
Less use of history The Usability in Open Source SW Hard to address usability issues because they require touching the whole system
Users' impact related to "proximity to project"
Positive feedback is prime motivation
Iteration with reference users is problematic:
Assumes they can say what they want
Hard to get beyond "hill climbing" improvements
May not be typical of the user population
End-User Mashup Had users create mashups using SW
Users interleave design, action, reflection Backtracking:
To explore alternatives
To get back to a safe state
Accidental Reframing
Reframing is part of learning
How to help people establish the right frame first? Needs Analysis Found that:
Can't understand constraints independent of a design
Good to look at user tasks to understand needs
Models and simple tools help This is so 1990 Software Recontextualization Studied implementation of a Campus Management System
System had major usability and user acceptance problems The paper considers software to "decontextualize" the work situation into algorithms the computer can execute The solution is apparently to "recontextualize" the result by bringing it back into the work context In other words:
Design from users
Test with users D'oh! Embodied Social Proxy Supported remote member of team with a local "telepresence device"
Rolling stand UPS Wireless link 180 deg fisheye lens camera Tilt/pan/zoom camera
under control of the remote team member Big enough screen for remote person to be almost full-sized Where should I turn? Studied passengers giving drivers directions
Parent / child
Strangers Primary finding:
Giving directions is hard People negotiate how much and when to tell People depend on knowing the other person People depend on shared history People still get it wrong Studying Driver Attention Studied the difference between visual, audio, and combined modes of interaction with a GPS navigator
Measured driver errors
Glance frequency
Drive time Primary finding:
People look at the visual display frequently (every 5 seconds)
Visual display causes more driving errors Calls, Cars and Cognition Studied drivers interrupted by calls requiring different types of response
Recall something from memory
Provide driving instructions
Recieve and remember information It is much more distracting to recall information than anything else Asking drivers to prioritize driving had no effect Primary findings Callers have no way of knowing what the driving situation is Managing UX Panel discussion of issues with doing UX within an organization Good quotes: Web statistics and surveys can optimize the experience but cannot create fundamentally new designs -- Irene Au, Google We have too much data from the web--we can't make sense of it all We knew we needed a new approach to one part of our design and tried to create it several sprints--finally we realized we couldn't do it that way and pulled the design out of the iterations. --Catherine Courage, Yahoo The data we collect from the web is only of limited use. It doesn't give you the "why" -- Arnie Lund, MS The UX team has to facilitate collaboration across the company Doctors and Psychosocial Information It matters Doctors don't capture or read it Bummer. Supporting Coordination in Surgical Suites Studied how hospitals coordinate use of operating theaters Two main points of coordination: The shared schedule The charge nurse's desk These are used in coordination with each other Every bad dream you ever had about design without user data come true No understanding of Work flow Paper notes Communication of context across shifts Formal vs. informal information Different work contexts Relationships between doctors, nurses and patients D'oh! In an Electronic Medical Record system Motivating Water Conservation Studied water use when use is displayed
Ambient meter turned yellow, then red
Alternative showed numbers
Tried in public sink and private showers In public sink, usage went up
People treated it like a toy or contest In private shower, usage went down
Ambient display worked better than meter Sharing Indoor Air Quality Measures Installed meter showing graph of air quality in user's house and others Raised awareness, though users didn't always know what to do with the information Worked surprisingly well to
discourage smoking Comparison with other households gave users a baseline The The Reuseable Paper Studied why people print To decide whether the document is useful
To compare with another document
To annotate or proofread
For security, to have a physical backup
As a reminder for later
To take along when a computer is cumbersome
To have a paper map
To file in a paper folder This is news? Discovered that if an interruption can be put off... Studied how requirements were gathered for a complex system
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