1. User-centric design
Usability
David Geerts

2. Agenda
 Introduction
 User-Centred Design
 User & Task Analysis
 Conceptual design & prototyping
 Experimentation & evaluation
 Accessibility, usability, likeability, sociability & playability
 Application domains
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3. Introduction
 On the borderline between
 Social research of new technologies
 Their interface in a specific (social) context
 Technical research of how to adapt new technologies
to users
 Closely related to the Human-Computer Interaction
competence
 CUO, SMIT, EDM
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4. User-Centred Design
Analysis
Users
Tasks
Context
Evaluation Design
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5. User & Task Analysis
 What?
 analyse users, environment, and
tasks
 adoption and domestication of
new media in everyday life
 Methods
 contextual inquiry, cultural
probing, experience sampling
 design ethnography, proxy
technology assessment, domain
analysis and participative
research
 Results
 personas and scenarios
 design guidelines
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6. Conceptual design & prototyping
 Methods
 Conceptual model
 Designing lo-fi prototypes
and hi-fi prototypes
 Iterative evaluation with
users
 explorative and qualitative
multi-method approach
 Results
 Designs of the most
important screens and the
interaction between them
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7. Experimentation & evaluation
 Methods
 Lab or field based user
testing
 Physiological
measurements or eye
tracking
 Expert evaluation
 The living lab approach
 Results
 Recommmendations for
changing the interface
design
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8. Accessibility, usability, likeability,
sociability & playability
LIKEABILITY SOCIABILITY PLAYABILITY
USABILITY
FUNCTIONALITY
ACCESSIBILITY
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10. Application domains
 Children and technology
 Communities and
sociability
 Technologies for the
elderly
 eHealth
 Games
 Interactive television
 Mobile interaction
 Tangible interfaces
 Ubiquitous computing
 …
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