user-centered design prof. dr. matthias rauterberg ipo center for user-system interaction tu/e...

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User-Centered Design

Prof. dr. Matthias RauterbergIPO Center for User-System Interaction

TU/e Eindhoven University of Technology

© M. Rauterberg, TU/e

What is an Interactive System (IS) ?

user interaction system

perception

action(s)

IS := {IS*, Human, ICT component, [additional component]}

© M. Rauterberg, TU/e

What are the research topics of USI?

systemuser

Work domain

Work system

Science• perception• cognition• action

Application

• user-centered design

Engineering• audio interfaces• computer vision/graphics• speech interfaces• tactile interfaces

Goal:Pa => Pd

© M. Rauterberg, TU/e

Interdisciplinary Research Approach

Design relevantknowledge

Empiricalevaluation

Interactive systems

© M. Rauterberg, TU/e

Cooperation with Industry

© M. Rauterberg, TU/e

What are the technical challenges?

• New interaction styles– speech input/output– computer vision based input (e.g., gestures)– audio interfaces (e.g., non-speech audio)– tactile and force feedback

• New interface concepts– adaptive and intelligent software– natural user interfaces

© M. Rauterberg, TU/e

Trends in User Interface Technology

Ubiquitous and Mobile computing Ambient rooms and Cooperative buildings

© M. Rauterberg, TU/e

• Perception Space– The physical space where

the user’s attention is.

• Action Space– The physical space where

the user acts in.

• Design Principle:– perception space and action

space must coincide!

What is design relevant knowledge?

© M. Rauterberg, TU/e

Airline Applications

• This remarkable ultra-lightweight computer, worn as a belt, delivers maximum information to users with a minimum of work.

• Designed for individuals who demand mobility, this computer offers voice control and heads up display for complete, hands-free operation.

• Users can enter or retrieve information while going about their jobs, instead of constantly returning to the shop area to check a stationary computer, or stopping work to punch keys.

© M. Rauterberg, TU/e

Head-up Displays in Cars

• More information and less distractionInformation on the state of the road, on the speed of the vehicle in front (supplied by the intelligent cruise control), on obstacles lying around the next bend in the road identified by the remote detection system, or direction arrows sent by the driver guidance system... drivers will be receiving more and more information from "intelligent" vehicle systems.

© M. Rauterberg, TU/e

Natural User Interfaces (NUI)

No technical equipment inside the body space of the user!

2. design principle

Perception space and action space must coincide!

1. design principle

© M. Rauterberg, TU/e

NUI: The First Round

Design principle

Field test

Digital Playing Desk

© M. Rauterberg, TU/e

0

50

100

150

200

250

300

350

400

450

500

Cel

l Me

an f

or

time

of

use

r (s

)Cell Line Chart for "playing time"

Grouping Variable(s): Interface type

Error Bars: ± 1 Standard Deviation(s)

CI MI TI DPD

P<.001P<.01P<.001

P<.001

P<.001

P<.001

Digital Playing Desk: Playing time per game

© M. Rauterberg, TU/e

computer win

remis

user win Cell Line Chart for "winning chance"

Grouping Variable(s): Interface type

Error Bars: ± 1 Standard Deviation(s)

CI MI TI DPD

P<.001P<.080P<.020

P<.802

P<.001

P<.007

Digital Playing Desk: winning chance per dialog technique

© M. Rauterberg, TU/e

NUI: The Second Round

Experiments

Build-It systems

Design principle

© M. Rauterberg, TU/e

NUI: The Third Round

Experiments

Design relevantknowledge

VIP prototype

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