Human-Computer Interaction –INTERACT 2013
Proceedings, Part IV

Paula Kotzé, Gary Marsden, Gitte Lindgaard, Janet Wesson, Marco Winckler

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Paula Kotzé, Gary Marsden, Gitte Lindgaard, Janet Wesson, Marco Winckler. Human-Computer Interaction –INTERACT 2013 Proceedings, Part IV. Lecture Notes in Computer Science, LNCS-8120 (Part IV), Springer, 2013, Human-Computer Interaction – INTERACT 2013. hal-04149510

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Commenced Publication in 1973

Founding and Former Series Editors:
Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen

Editorial Board

David Hutchison
*Lancaster University, UK*

Takeo Kanade
*Carnegie Mellon University, Pittsburgh, PA, USA*

Josef Kittler
*University of Surrey, Guildford, UK*

Jon M. Kleinberg
*Cornell University, Ithaca, NY, USA*

Alfred Kobsa
*University of California, Irvine, CA, USA*

Friedemann Mattern
*ETH Zurich, Switzerland*

John C. Mitchell
*Stanford University, CA, USA*

Moni Naor
*Weizmann Institute of Science, Rehovot, Israel*

Oscar Nierstrasz
*University of Bern, Switzerland*

C. Pandu Rangan
*Indian Institute of Technology, Madras, India*

Bernhard Steffen
*TU Dortmund University, Germany*

Madhu Sudan
*Microsoft Research, Cambridge, MA, USA*

Demetri Terzopoulos
*University of California, Los Angeles, CA, USA*

Doug Tygar
*University of California, Berkeley, CA, USA*

Gerhard Weikum
*Max Planck Institute for Informatics, Saarbruecken, Germany*
Paula Kotzé Gary Marsden Gitte Lindgaard

Janet Wesson Marco Winckler (Eds.)

Human-Computer
Interaction –
INTERACT 2013

14th IFIP TC 13 International Conference
Cape Town, South Africa, September 2-6, 2013
Proceedings, Part IV

<figure><img src="image_2.png" /></figure>

Springer
## Volume Editors

Paula Kotzé
CSIR Meraka Institute, PO Box 395, Pretoria 0001, South Africa
E-mail: pkotzel@csir.co.za

Gary Marsden
University of Cape Town, Department of Computer Science
Private Bag X3, Rondebosch 7701, Cape Town, South Africa
E-mail: gaz@cs.uct.ac.za

Gitte Lindgaard
Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
E-mail: gitte.lindgaard@carleton.ca

Janet Wesson
Nelson Mandela Metropolitan University, Department of Computing Sciences
PO Box 77000, Port Elisabeth 6031, South Africa
E-mail: janet.wesson@nmmu.ac.za

Marco Winckler
University Paul Sabatier, Institute of Research in Informatics of Toulouse (IRIT)
118 Route de Narbonne, 31062 Toulouse Cedex 9, France
E-mail: winckler@irit.fr

ISSN 0302-9743

e-ISSN 1611-3349

ISBN 978-3-642-40497-9

e-ISBN 978-3-642-40498-6

DOI 10.1007/978-3-642-40498-6

Springer Heidelberg New York Dordrecht London

Library of Congress Control Number: 2013945558

CR Subject Classification (1998): H.5.2, H.5.3, H.3-5, I.2.10, D.2, C.2, K.3-4

LNCS Sublibrary: SL 3 – Information Systems and Application, incl. Internet/Web and HCI

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Foreword

INTERACT 2013 was the 14th of a series of INTERACT international con-
ferences supported by the International Federation for Information Processing
(IFIP) Technical Committee 13 on Human-Computer Interaction.

This year, INTERACT was held in Cape Town (South Africa), organized by
the Nelson Mandela Metropolitan University (Port Elizabeth) and the Meraka
Institute of Council for Scientific and Industrial Research (Pretoria) in collabo-
ration with the University of Cape Town.

The Conference theme for INTERACT 2013, “Designing for Diversity,” recognizes the interdisciplinary, multidisciplinary and intercultural spirit of human–computer interaction (HCI) research and practice. The conference welcomes research and reports of practice that acknowledge diverse disciplines, abilities, cultures, and societies, and that address both the technical and social aspects of HCI. Within the broad umbrella of HCI, the conference sought contributions addressing new and emerging HCI disciplines, bridging cultural differences, and tackling important social problems.

Like its predecessors, INTERACT 2013 highlighted, to both the academic and the industrial world, the importance of the HCI discipline and its most recent breakthroughs on current applications. Both experienced HCI researchers and professionals, as well as newcomers to the HCI field, interested in designing or evaluating interactive software, developing new interaction technologies, or investigating overarching theories of HCI, found in INTERACT 2013 an exciting forum for communication with people of similar interests, to encourage collaboration and to learn.

INTERACT 2013 brought the conference to South Africa and Africa for the very first time. The African tradition of HCI focuses very much on the human and social aspects of HCI, recognizing the diversity of its people and the circumstance in which they go about their everyday lives. We hope that INTERACT 2013 will be remembered as a conference that brought the diversity of HCI research to the forefront, making the computerized world a better place for all, regardless of where they come from.

INTERACT 2013 took place 29 years after the first INTERACT held in September 1984 in London, UK. The IFIP Technical Committee 13 aims to develop the science and technology of the interaction between humans and computing devices through different Working Groups and Special Interests Groups, all of which, together with their officers, are listed within these proceedings.

We thank all the authors who chose INTERACT 2013 as the venue to publish their research. This was again an outstanding year for the conference in terms of submissions in all the technical categories, especially since the conference moved away from the traditional predominantly European venues. In total, we received 639 submissions. Of these, 270 submissions were accepted:
• 128 as full research papers

• 77 as short research papers

• 31 as interactive posters

• 2 as industrial programme papers

• 4 as panels

• 1 as a special interest group

• 1 as a tutorial

• 9 as workshops

• 9 to the African Masters Consortium

• 8 to the Doctoral Consortium

The acceptance rate for the full and short research papers was 31% and 45%, respectively.

A Programme Committee meeting consisting of the Technical Programme Chairs and the Track Chairs, as well as member of IFIP Technical Committee 13, preceded the final decision on which submissions to accept. This powerful effort was only possible thanks to the diligent work of many people. Our sincere gratitude goes to the almost 700 members of our International Programme Committee who willingly assisted and ensured the high quality of the INTERACT Conference papers was properly maintained. Although some people had to be bullied into reviewing (sorry about that), everyone submitted their reviews on time without a murmur of complaint. Thank you all for the effort that you so obviously put into this task. A special thank you must go to our Track Chairs, who put in a tremendous amount of work to ensure that quality was maintained throughout.

In addition, we have to thank the members of the Organizing Committee, the staff at the Council for Industrial and Scientific Research, Nelson Mandela Metropolitan University and the University of Cape Town for their unflagging assistance with all aspects of planning and managing the many administrative and organizational issues. We also have to thank our student volunteers for making sure that everything ran smoothly at the conference itself.

Finally, we wish to express a special thank you to the Proceedings Publication Chair, Marco Winckler, who painstakingly put this volume together.

September 2013

Paula Kotzé

Janet Wesson

(INTERACT 2013 Conference Chairs)

Gary Marsden

Gitte Lindgaard

(INTERACT 2013 Technical Programme Chairs)
IFIP TC13

Established in 1989, the International Federation for Information Processing Technical Committee on Human-Computer Interaction (IFIP TC13) is an international committee of 30 member national societies and seven Working Groups, representing specialists in human factors, ergonomics, cognitive science, computer science, design, and related disciplines. INTERACT is its flagship conference, staged biennially in different countries in the world.

IFIP TC13 aims to develop the science and technology of human-computer interaction (HCI) by encouraging empirical research, promoting the use of knowledge and methods from the human sciences in design and evaluation of computer systems; promoting better understanding of the relationship between formal design methods and system usability and acceptability; developing guidelines, models and methods by which designers may provide better human-oriented computer systems; and, cooperating with other groups, inside and outside IFIP, to promote user-orientation and humanization in system design. Thus, TC13 seeks to improve interactions between people and computers, encourage the growth of HCI research, and disseminate these benefits worldwide.

The main orientation is toward users, especially the non-computer professional users, and how to improve human-computer relations. Areas of study include: the problems people have with computers; the impact on people in individual and organizational contexts; the determinants of utility, usability, and acceptability; the appropriate allocation of tasks between computers and users; modeling the user to aid better system design; and harmonizing the computer to user characteristics and needs.

While the scope is thus set wide, with a tendency toward general principles rather than particular systems, it is recognized that progress will only be achieved through both general studies to advance theoretical understanding and specific studies on practical issues (e.g., interface design standards, software system consistency, documentation, appropriateness of alternative communication media, human factors guidelines for dialogue design, the problems of integrating multimedia systems to match system needs and organizational practices, etc.).

In 1999, TC13 initiated a special IFIP Award, the Brian Shackel Award, for the most outstanding contribution in the form of a refereed paper submitted to and delivered at each INTERACT. The award draws attention to the need for a comprehensive human-centered approach in the design and use of information technology in which the human and social implications have been taken into account. Since the process to decide the award takes place after papers are submitted for publication, the award is not identified in the proceedings.
IFIP TC13 stimulates working events and activities through its Working Groups (WGs) and Special Interest Groups (SIGs). WGs and SIGs consist of HCI experts from many countries, who seek to expand knowledge and find solutions to HCI issues and concerns within their domains, as outlined below.

* WG13.1 (Education in HCI and HCI Curricula) aims to improve HCI education at all levels of higher education, coordinate and unite efforts to develop HCI curricula and promote HCI teaching.

* WG13.2 (Methodology for User-Centered System Design) aims to foster research, dissemination of information and good practice in the methodical application of HCI to software engineering.

* WG13.3 (HCI and Disability) aims to make HCI designers aware of the needs of people with disabilities and encourage development of information systems and tools permitting adaptation of interfaces to specific users.

* WG13.4 (also WG2.7) (User Interface Engineering) investigates the nature, concepts and construction of user interfaces for software systems, using a framework for reasoning about interactive systems and an engineering model for developing user interfaces.

* WG13.5 (Human Error, Safety and System Development) seeks a framework for studying human factors relating to systems failure, develops leading-edge techniques in hazard analysis and safety engineering of computer-based systems, and guides international accreditation activities for safety-critical systems.

* WG13.6 (Human-Work Interaction Design) aims at establishing relationships between extensive empirical work-domain studies and HCI design. It will promote the use of knowledge, concepts, methods and techniques that enable user studies to procure a better apprehension of the complex interplay between individual, social and organizational contexts and thereby a better understanding of how and why people work in the ways that they do.

* WG13.7 (Human-Computer Interaction and Visualization) is the newest of the working groups under the TC13. It aims to establish a study and research program that will combine both scientific work and practical applications in the fields of HCI and visualization. It will integrate several additional aspects of further research areas, such as scientific visualization, data mining, information design, computer graphics, cognition sciences, perception theory, or psychology, into this approach.

* SIG 13.1 (HCI and International Development) aims to promote the application of interaction design research, practice and education to address the needs, desires and aspirations of people in the developing world; support and develop the research, practice and education capabilities of HCI institutions and organizations based in the developing world; develop links between the HCI community in general, and IFIP TC13 in particular, with other relevant communities involved in development, especially IFIP WG 9.4 Computers in Developing Countries.
* SIG 13.2 (Interaction Design and Children) aims to provide a forum for all things relating to interaction design and HCI where the intended users or appropriators of the technology or service are children. The definition of children is broad rather than narrow, including toddlers and teenagers, but the core work, currently at least, is with children in junior schools.

New Working Groups and Special Interest Groups are formed as areas of significance to HCI arise. Further information is available at the IFIP TC13 website: http://www.tc13.org
# IFIP TC13 Members

**Australia**

Judy Hammond
Australian Computer Society

**Australia**

Andreas Holzinger
Austrian Computer Society

**Belgium**

Monique Noirhomme-Fraiture
Fédération des Associations
Informatiques de Belgique

**Brazil**

Simone Diniz Junqueira Barbosa
Brazilian Computer Society (SBC)

**Bulgaria**

Kamelia Stefanova
Bulgarian Academy of Sciences

**Canada**

Heather O'Brien
Canadian Information Processing
Society

**Chile**

Jaime Sánchez
Chilean Society of Computer Science

**China**

Chengqing Zong
Chinese Institute of Electronics

**Cyprus**

Panayiotis Zaphiris
Cyprus Computer Society

**Czech Republic**

Vaclav Matousek
Czech Society for Cybernetics
and Informatics

**Denmark**

Torkil Clemmensen
Danish Federation
for Information Processing

**Finland**

Kari-Jouko Räihä
Finnish Information Processing
Association

**France**

Philippe Palanque
Société des Electriciens
et des Electroniciens (SEE)

**Germany**

Tom Gross
Gesellschaft für Informatik

**Hungary**

Cecilia Sik Lanyi
John V. Neumann Computer Society

**Iceland**

Marta Kristin Larusdottir
The Icelandic Society
for Information Processing (ISIP)

**India**

Anirudha Joshi
Computer Society of India

**Ireland**

Liam J. Bannon
Irish Computer Society

**Italy**

Fabio Paternò
Italian Computer Society
**Japan**

Yoshifumi Kitamura
Information Processing Society
of Japan

**Kenya**

Dan Orwa
Computer Society of Kenya

**Korea**

Gerry Kim
KIISE

**Malaysia**

Chui Yin Wong
Malaysian National Computer
Confederation

**New Zealand**

Mark Apperley
New Zealand Computer Society
(NZCS)

**Nigeria**

Chris C. Nwannenna
Nigeria Computer Society

**Norway**

Dag Svanes
Norwegian Computer Society

**Poland**

J.L. Kulikowski
Poland Academy of Sciences

**Portugal**

Joaquim A. Jorge
Associação Portuguesa para o
Desenvolvimento da
Sociedade da Informação (APDSI)

**Singapore**

Henry B.L. Duh
Singapore Computer Society

**South Africa**

Janet L. Wesson
The Computer Society of South Africa

**Spain**

Julio Abascal
Asociación de Técnicos de Informática
(ATI)

**Sweden**

Jan Gulliksen
Swedish Computer Society

**Switzerland**

Solange Ghernaouti
Swiss Federation
for Information Processing

**The Netherlands**

Gerrit C. van der Veer
Nederlands Genootschap
voor Informatica

**UK**

Andy Dearden
British Computer Society

**USA-Based**

John Karat
Association for Computing Machinery
(ACM)

**Expert Members**

Paula Kotzé (South Africa)
Gitte Lindgaard (Australia)
Marco Winckler (France)
Masaaki Kurosu (Japan)
Nikos Avouris (Greece)
Zhengjie Liu (China)
Working Group Chairpersons

WG13.1 (Education in HCI and HCI Curricula)

Lars Oestreicher, Sweden

WG13.2 (Methodology for User-Centered System Design)

Peter Forbrig, Germany

WG13.3 (HCI and Disability)

Gerhard Weber, Germany

WG13.4 (also 2.7) (User Interface Engineering)

Fabio Paternò, Italy

WG13.5 (Human Error, Safety, and System Development)

Chris Johnson, UK

WG13.6 (Human-Work Interaction Design)

Torkil Clemmensen, Denmark

WG13.7 (Human Computer Interaction and Visualization)

Achim Ebert, Germany

SIG 13.1 – HCI and International Development

Andy Dearden, UK

SIG 13.2 – Interaction Design and Children

Janet Read, UK
Conference Organizing Committee

INTERACT 2013

Conference Chairs

Paula Kotzé, South Africa

Janet Wesson, South Africa

Technical Programme Chairs

Gary Marsden, South Africa

Gitte Lindgaard, Australia

Long Research Papers Chairs

Gary Marsden, South Africa

Gitte Lindgaard, Australia

Short Research Papers and
Interactive Posters Chairs

Peter Forbrig, Germany

Monique Noirhomme, Belgium

Industrial Programme Chairs

Susan Dray, USA

Shikoh Gitau, Kenya

Helga Letowt-Vorbek, South Africa

Keynotes Chairs

Gary Marsden, South Africa

Paula Kotzé, South Africa

Janet Wesson, South Africa

Workshops and Tutorials Chair

Helene Gelderblom, South Africa

Doctoral Consortium Chairs

Philippe Palanque, France

Darelle van Greunen, South Africa

Paula Kotzé, South Africa

African Masters Consortium
Chairs

Darelle van Greunen, South Africa

Paula Kotzé, South Africa

Panels and Special Interest
Groups Chairs

Andy Dearden, UK

Hannah Thinyane, South Africa

Judy van Biljon, South Africa

Demonstrations and Interactive
Experiences Chairs

Stacy Hobson, USA

Kasper Jensen, Namibia

Proceedings Publication Chair

Marco Winckler, France

Student Volunteer Chairs

Thomas Reitmaier, Germany

Funmi Adebesin, South Africa

Darelle van Greunen, South Africa

General Conference
Administration and Logistics

Marlene Jivan, South Africa

Alida Veldsman, South Africa
International Programme Committee Members

Julio Abascal, Spain
Al Mahmud Abdullah,
The Netherlands
Silvia Abrahão, Spain
Funmi Adebesin, South Africa
Sisira Adikari, Australia
Ana Paula Afonso, Portugal
Jose Luis Alba, Spain
Jason Alexander, UK
Dzmitry Aliakseyeu, The Netherlands
Majed Alshamari, Saudi Arabia
Margarita Anastassova, France
Craig Anslow, New Zealand
Jean-Yves Antoine, France
Mark Apperley, New Zealand
Caroline Appert, France
Nathalie Aquino, France
Liliana Ardissono, Italy
Carmelo Ardito, Italy
Pedro Arezes, Portugal
Myriam Arrue Recondo, Spain
Mark Ashdown, UK
Nikolaos Avouris, Greece
Chris Baber, UK
Cedric Bach, France
Jonathan Back, UK
Sebastiano Bagnara, Italy
Gilles Bailly, Germany
Martina Balestra, USA
Emilia Barakova, The Netherlands
Simone Barbosa, Brazil
Shaowen Bardzell, USA
Javier Bargas-Avila, Switzerland
Louise Barkhuus, Sweden
Barbara Rita Barricelli, Italy
Gil Barros, Brazil
Remi Bastide, France
Eric Baumer, USA
Gordon Baxter, UK
Russell Beale, UK

Elke Beck, Austria
Yacine Bellik, France
David Benyon, UK
François Berard, France
Regina Bernhaupt, France
Olav W. Bertelsen, Denmark
Nigel Bevan, UK
Ganesh Bhutkar, India
Nicola Bidwell, South Africa
Matthew Bietz, USA
Mark Billinghurst, UK
Dorrit Billman, USA
Thomas Binder, Denmark
Jeremy Birnholtz, USA
Fernando Birra, Portugal
Renaud Blanch, France
Marco Blumendorf, Germany
Mads Bødker Bødker, Denmark
Cristian Bogdan, Sweden
Davide Bolchini, USA
Birgit Bomsdorf, Germany
Rodrigo Bonacin, Brazil
Marcela Borge, USA
Sebastian Boring, Denmark
Aviaja Borup, Denmark
Paolo Bottoni, Italy
Matt-Mouley Bouamrane, UK
Don Bouwhuis, The Netherlands
Chris Bowers, UK
Doug Bowman, USA
Giorgio Brajnik, Italy
Willem-Paul Brinkman,
The Netherlands
Gregor Broll, Germany
Judith Brown, Canada
Nick Bryan-Kinns, UK
Sabin-Corneliu Buraga, Romania
Marina Buzzi, France
Maria Claudia Buzzi, Italy
Daragh Byrne, USA
Cristina, Cachero, Spain

Paul Cairns, UK

Jeff Calcaterra, USA

Karen Calteaux, South Africa

Licia Calvi, The Netherlands

Eduardo Calvillo Gamez, Mexico

José Campos, Portugal

Pedro Campos, Portugal

Maria-Dolores Cano, Spain

Cinzia Cappiello, Italy

Robert Capra, USA

Jorge Cardoso, Portugal

Stefan Carmien, Spain

Maria Beatriz Carmo, Portugal

Luis Carriço, Portugal

Tiziana Catarci, Italy

Augusto Celentano, Italy

Teresa Chambel, Portugal

Olivier Chapuis, France

Monchu Chen, Portugal

Yunan Chen, USA

Kelvin Cheng, Singapore

Keith Cheverst, UK

Sonia Chiasson, Canada

Yoram Chisik, Portugal

Luca Chittaro, Italy

Yu-kwong Chiu, USA

Georgios Christou, Cyprus

Andrea Civan Hartzler, USA

Torkil Clemmensen, Denmark

Todd Cochrane, New Zealand

Luis Coelho, Portugal

Nathalie Colineau, Australia

Karin Coninx, Belgium

Stéphane Conversy, France

Michael Cooke, Ireland

Nuno Correia, Portugal

Maria Francesca Costabile, Italy

Celine Coutrix, France

Nadine Couture, France

Anna Cox, UK

Leonardo Cunha de Miranda, Brazil

Edward Cutrell, India

Raimund Dachselt, Germany

Carla Maria Dal Sasso Freitas, Brazil

Peter Dalsgaard, Germany

Jose Danado, Portugal

Chi Tai Dang, Germany

Peter Dannenmann, Germany

John Darzentas, Greece

Berardina De Carolis, Italy

Tjerk de Greef, The Netherlands

Elena de la Guia Cantero, Spain

Alexander De Luca, Germany

Giorgio De Michelis, Italy

Luigi De Russis, Italy

Boris de Ruyter, The Netherlands

Marco de Sá, USA

Clarisse de Souza, Brazil

Ruth de Villiers, South Africa

Andy Dearden, UK

Alexandre Demeure, France

Parag Deshpande, Sweden

Heather Desurvire, USA

Nicoletta Di Blas, Italy

Ines Di Loreto, Italy

Paulo Dias, Portugal

Lily Diaz, Finland

Claire Diederich, Belgium

Anke Dittmar, Germany

Tanja Döring, Germany

Susan Dray, USA

Carlos Duarte, Portugal

Emmanuel Dubois, France

Cathy Dudek, Canada

Andreas Duenser, New Zealand

Sophie Dupuy-Chessa, France

Hamid Ekbia, USA

Linda Elliott, USA

Niklas Elmqvist, USA

Thomas, Erickson, USA

Dominik Ertl, Austria

Parisa Eslambolchilar, UK

Giorgio Faconti, Italy

João Falcão e Cunha, Portugal

Pedro Faria Lopes, Portugal

Robert Farrell, USA

Ava Fatah gen Schieck, UK

Jean-Daniel Fekete, France

Daniel Felix, Switzerland
Xavier Ferre, Spain
Mirko Fetter, Germany
Sebastian Feuerstack, Brazil
Danyel Fisher, USA
Francisco Florez-Revuelta, UK
Daniela Fogli, Italy
Eelke Folmer, USA
Joan Fons, Spain
Manuel Joao Fonseca, Portugal
Peter Forbrig, Germany
Derek Foster, UK
Marcus Foth, Australia
Teresa Franqueira, Portugal
Andre Freire, Brazil
Mathias Frisch, Germany
Dominic Furniss, UK
Luigi Gallo, Italy
Teresa Galvao, Portugal
Nestor Garay-Vitoria, Spain
Roberto García, Spain
Vaibhav Garg, USA
Anant Bhaskar Garg, USA
Jose Luis Garrido, Spain
Franca Garzotto, Italy
Jean-marc Gauthier, USA
Miguel Gea, Spain
Patrick Gebhard, Germany
Sven Gehring, Germany
Helene Gelderblom, South Africa
Cristina Gena, Italy
Nahum Gershon, USA
Werner Geyer, USA
Florian Geyer, Germany
Gautam Ghosh, Norway
Patrick Girard, France
Shikoh Gitau, Kenya
Vlado Glavinic, Croatia
Kentaro Go, Japan
Daniel Gonçalves, Portugal
Jose Luis Gonzalez Sanchez, Spain
Alice Good, UK
Phil Gosset, USA
Nitesh Goyal, USA
Cornelia Graf, Austria
Nicholas Graham, Canada

Andrina Granic, Croatia
Raphael Grasset, Austria
Olivier Grisvard, France
Tom Gross, Germany
Joshua Gross, USA
John Grundy, Australia
Tiago Guerreiro, Portugal
Yves Guiard, France
Nuno Guimaraes, Portugal
Jan Gulliksen, Sweden
Sainath Gupta, India
Adriana Mihaela Guran, Romania
Francisco Luis Gutierrez Vela, Spain
Mieke Haesen, Belgium
Hans Hagen, Germany
Lars Hallnäs, Sweden
Kim Halskov, Denmark
Martin Halvey, UK
Judy Hammond, Australia
Mark Hancock, UK
Richard Harper, UK
Joseph Hategekimana, Norway
Kirstie Hawkey, Canada
Elaine Hayashi, Brazil
Ruediger Heimgaertner, Germany
Ingi Helgason, UK
Bart Hengeveld, The Netherlands
Michael Herczeg, Germany
Marlien Herselman, South Africa
Morten Hertzum, Denmark
Wilko Heuten, Germany
Michael Hildebrandt, Norway
Martin Hitz, Austria
Stacy Hobson, USA
Christina Hochleitner, Austria
Stefan Holmlid, Sweden
Clemens Holzmann, Austria
Kasper Hornbæk, Denmark
Heiko Hornung, Brazil
John Hosking, Australia
Juan Pablo Hourcade, USA
Ko-Hsun Huang, Taiwan
William Hudson, UK
Stéphane Huot, France
Tim Hussein, Germany
Ebba Hvannberg, Iceland

Ioanna Iacovides, UK

Junko Ichino, Japan

Netta Iivari, Finland

Shamsi Iqbal, USA

Petra Isenberg, France

Minna Isomursu, Finland

Ido A. Iurgel, Germany

Ole Sejer Iversen, Denmark

Robert Jacob, USA

Mikkel Jakobsen, Denmark

Jacek Jankowski, Ireland

Anders Jansson, Sweden

Kasper Jensen, Namibia

Chris Johnson, UK

Simon Jones, UK

Joaquim Jorge, Portugal

Rui Jose, Portugal

Martino Jose Mario, Brazil

Anirudha Joshi, India

Christophe Jouffrais, France

Marko Jurmu, Japan

Don Kalar, USA

Martin Kaltenbrunner, Austria

Santosh Kalwar, Finland

Matthew Kam, USA

Bridget Kane, Ireland

Victor Kaptelinin, Sweden

Mayur Karnik, Portugal

Kostas Karpouzis, Greece

Konstantinos Kazakos, Australia

Ryan Kelly, UK

Pramod Khambete, India

Vassilis-Javed Khan, The Netherlands

Olga Khroustaleva, USA

Hyungsin Kim, USA

Jayne Klenner, UK

Gerhard Knolmayer, Switzerland

Christophe Kolski, France

Ilpo Koskinen, Australia

Paula Kotzé, South Africa

Kostas Koukouletsos, Greece

Subramanian Krishnamurthy, India

Antonio Krüger, Germany

Sari Kujala, Finland

Hannu Kukka, Finland

Juliusz Kulikowski, Poland

Ann Lantz, Sweden

Rosa Lanzilotti, Italy

Astrid Twenebowa Larssen, Ghana

Marta Larusdottir, Iceland

Yann Laurillau, France

Marco Lazzari, Italy

Eric Lecolinet, France

Jong-Seok Lee, Korea

Juha Leino, Finland

Teemu Heikki Anttoni Leinonen, Finland

Jair Leite, Brazil

Barbara, Leporini, Italy

Sophie Lepreux, France

Helga Letowt-Vorbek, South Africa

Stefano Levialdi, Italy

Henry Lieberman, USA

Gitte Lindgaard, Australia

Zhengjie Liu, China

Sara Ljungblad, Sweden

Steffen Lohmann, Germany

Nicole Lompré, France

Víctor M. López Jaquero, Spain

Fabien Lotte, France

Stephanie Ludi, USA

Bernd Ludwig, Germany

Andreas Luedtke, Germany

Christopher Lueg, Australia

Artur Lugmayr, USA

Jo Lumsden, UK

Christof Lutteroth, New Zealand

Kris Luyten, Belgium

Saturnino Luz, Ireland

Baillie Lynne, Austria

José A. Macías, Spain

Allan MacLean, UK

Rui Madeira, Portugal

Joaquim Madeira, Portugal

Christian Maertin, Germany

Charlotte Magnusson, Sweden

Ana Gabriela Maguitman, Argentina

Murni Mahmud, Malaysia

Angela Mahr, Germany
Carleen Mailtland, USA
Alessio Malizia, UK
Jani Mäntyjärvi, Finland
Javier Marco, Spain
Ana-Maria Marhan, Romania
Gary Marsden, South Africa
Mark Marshall, UK
Hannah Marston, Germany
Benoît Martin, France
Diego Martinez, Spain
Célia Martinie, France
Masood Masoodian, New Zealand
Sara Mastro, USA
Maristella Matera, Italy
Akhil Mathur, India
Max-Emanuel Maurer, Germany
Eva Mayr, Austria
Davide Mazza, Italy
Emanuela Mazzone, UK
Scott McCrickard, USA
Tom McEwan, UK
Kevin McGee, Singapore
Indrani Medhi, USA
Gerrit Meixner, Germany
Guy Melancon, France
Alex Mitchell, Singapore
Jose Pascual Molina Masso, Spain
Tonja Molin-Juustila, Finland
Francisco Montero Simarro, Spain
Pedro Moreira, Portugal
Ann Morrison, Denmark
Christiane Moser, Austria
Omar Mubin, Australia
Florian Mueller, USA
Maurice Mulvenna, UK
Dianne Murray, UK
Rod Murray-Smith, UK
Moyen Mustaquim, Sweden
Linda Napoletano, Italy
David Navarre, France
Luciana Nedel, Brazil
Vania Neris, Brazil
Jeff Nichols, USA
Colette Nicolle, UK
Laurence Nigay, France

Erik G. Nilsson, Norway
Valentina Nisi, Portugal
Leonel Nobrega, Portugal
Sylvie Noel, Italy
Manuel Noguera, Portugal
Monique Noirhomme, Belgium
Nuno Nunes, Portugal
Clemens Nylandsted Klokmose, Denmark
Michael O'Grady, Ireland
Kenton O'Hara, USA
Marianna Obrist, UK
Lars Oestreicher, Sweden
Amy Ogan, USA
Marta Oliva, Spain
Eva Oliveira Gonçalves, Portugal
Stefan Oppl, Austria
Lidia Oshlyansky, Sweden
Nuno Otero, Sweden
Benoit Otjacques, Luxembourg
Saila Ovaska, Finland
Ana Paiva, Portugal
Philippe Palanque, France
Jose Ignacio Panach Navarrete, Spain
Emanuele Panizzi, Italy
Nadia Pantidi, UK
Luca Paolino, Italy
Eleftherios Papachristos, Greece
Narcis Pares, Spain
Tessy Pargman, Sweden
Timo Partala, Finland
Avi Parush, Canada
Oscar Pastor, Spain
Fabio Paternò, Italy
Andrew Patrick, Canada
Celeste Lyn Paul, USA
Andriy Pavlovych, Canada
Annelise Mark Pejtersen, Denmark
Helen Louise Petrie, UK
Greg Phillips, Canada
Lara Piccolo, Brazil
Emmanuel Pietriga, Chile
Thomas Pietrzak, France
Marcelo Pimenta, Brazil
Ian Pitt, Ireland
Fabio Pittarello, Italy

Andreas Pleuß, Ireland

Klaus Pohl, Germany

Roberto Polillo, Italy

Vesna Popovic, Australia

Dorin Mircea Popovici, Romania

Roman Popp, Austria

Benjamin Poppinga, Germany

Chris Power, UK

Mathura Prasad Thapliyal, India

Raquel Prates, Brazil

Costin Pribeanu, Romania

Angel Puerta, USA

Andreas Pusch, Germany

Alexandra Queirós, Portugal

Victor M.R. Penichet, Spain

Kari-Jouko Räihä, Finland

Nitendra Rajput, India

Ismo Rakkolainen, Finland

David Raneburger, Austria

Roberto Ranon, Italy

Dimitrios Raptis, Denmark

Matthias Rauterberg, The Netherlands

Janet Read, UK

Madhu Reddy, USA

Stuart Reeves, UK

Patrick Reignier, France

Rene Reiners, Germany

Thomas Reitmaier, Germany

Christian Remy, Switzerland

Karen Renaud, UK

Malte Ressin, UK

Simos Retalis, Greece

Yann Riche, USA

Thomas Rist, Germany

Guillaume Rivière, France

Toni Robertson, Australia

Simon Robinson, UK

Carsten Röcker, Germany

Armanda Rodrigues, Portugal

Yvonne Rogers, UK

Markus Rohde, Germany

Teresa Romão, Portugal

Mario Romero, Sweden

Jose, Rouillard, France

Mark Rouncefield, UK

Nicolas Roussel, France

Banani Roy, Canada

Jaime Ruiz, USA

Saqib Saeed, Pakistan

Pascal Salembier, France

Antti Salovaara, Finland

Krystian Samp, Ireland

Paulo Sampaio, Brazil

Jaime Sanchez, Chile

Bengt Sandblad, Sweden

Frode Eika Sandnes, Norway

Vagner Santana, Brazil

Carmen Santoro, Italy

Teresa Sarmento, Portugal

Corina Sas, UK

Christine Satchell, Australia

Cheryl Savery, Canada

Anthony Savidis, Greece

Dominique L. Scapin, France

Thomas Schlegel, Germany

Michael Schmidt, Germany

Kevin Schneider, Canada

Johannes Schöning, Belgium

Gerhard Schwabe, Switzerland

Marc Seissler, Germany

Dev Sen, Canada

Montserrat Sendin Veloso, Spain

Tacha Serif, Turkey

Ehud Sharlin, Canada

Aditi Sharma Grover, South Africa

Moushumi Sharmin, USA

Huihui Shi, Germany

Cecília Sik Lányi, Hungary

Bruno Silva, Brazil

Paula Alexandra Silva, Portugal

Frutuoso Silva, Portugal

Joao Carlos Silva, Portugal

Milene Silveira, Brazil

Gavin Robert Sim, UK

Carla Simone, Italy

Mikael B. Skov, Denmark

Andrew Smith, South Africa

Brian Smith, USA

David Smith, USA
Danny Soroker, USA
Kenia Sousa, Belgium
Martin Spindler, Germany
Jan Stage, Denmark
Christian Stary, Austria
John Stasko, USA
Markus Stolze, Switzerland
Simone Stumpf, UK
Noi Sukaviriya, USA
S. Shyam Sundar, USA
Alistair Sutcliffe, UK
David Swallow, UK
Anthony Tang, Canada
Charlotte Tang, USA
John Tang, USA
Jean-Claude Tarby, France
Franck Tarpin-Bernard, France
Deborah Tatar, USA
Luis Teixeira, Portugal
Carlos Teixeira, Portugal
António Teixeira, Puerto Rico
Harold Thimbleby, UK
Hannah Thinyane, South Africa
Jakob Tholander, Sweden
Martin Tomitsch, Australia
Ilaria Torre, Italy
Stefan Trausan-Matu, Romania
Manfred Tscheligi, Austria
Nikolaos Tselios, Greece
Simon Tucker, UK
Susan Turner, UK
Phil Turner, UK
Leon Urbas, Germany
Kaisa Väänänen-Vainio-Mattila, Finland
Heli Väätäjä, Finland
Teija Vainio, Finland
Leonel Valbom, Portugal
Pedro Valderas, Spain
Judy van Biljon, South Africa
Thea van der Geest, The Netherlands
Darelle van Greunen, South Africa
Bradley van Tonder, South Africa
Lex van Velsen, The Netherlands

Lynette van Zijl, South Africa
Jean Vanderdonckt, Belgium
Radu-Daniel Vatavu, Romania
Manuel Veit, France
Ángel Velázquez-Iturbide, Spain
Janneke Verhaegh, The Netherlands
Arnold P.O.S. Vermeeren, The Netherlands
Bart Vermeersch, Belgium
Jo Vermeulen, Belgium
Nadine Vigouroux, France
Giuliana Vitiello, Italy
Arnd Vitzthum, Germany
Stephen Voida, USA
Jörg Voskamp, Germany
Ljiljana Vukelja, Switzerland
Dhaval Vyas, India
QuanWei Wang, China
Ian Warren, New Zealand
Gerhard Weber, Germany
Gerald Weber, New Zealand
Carolyn Wei, USA
Alexandra Weilenmann, Sweden
Astrid Weiss, Austria
Janet Wesson, South Africa
Mikael Wiberg, Sweden
Peter Wild, UK
David Wilfinger, Austria
Marco Winckler, France
Heike Winschiers-Theophilus, Namibia
Wolfgang Woerndl, Germany
Peter Wolkerstorfer, Austria
Michael Wright, UK
Min Wu, USA
Heng Xu, USA
Yeliz Yesilada, UK
James Young, Canada
Ray Yun, USA
Massimo Zancanaro, Italy
Xiaolong (Luke) Zhang, USA
Martina Ziefle, Germany
Jürgen Ziegler, Germany
Gottfried Zimmermann, Germany
Martin Zimmermann, Germany
Additional Reviewers

Álvaro Fernández

Anke Lehmann

Asbjørn Følstad

Burkay Sucu

Carlos Pereira

Cecilie Brynskov

Diana Lemme

Florian Lettner

Haiyan Jia

Ilaria Liccardi

J.L. Hiah

Jiaqi Nie

Jo Iacovides

Luciana Cardoso de Castro Salgado

Luis Duarte

Markel Vigo

Myriam Lewkowicz

Rui Madeira

Rui Nóbrega

Samuel Silva

Sandy Gould

Sofia Reis

Thomas Birn

Timm Linder

Vinícius Segura

Xavier Le Pallec

Yasmin Al Zokari
# Table of Contents – Part IV

## *Long and Short Papers (Continued)*

### Supporting Physical Activity

The Development and Evaluation of an Interactive System for Age Related Musculoskeletal Rehabilitation in the Home
*Mobolaji Ayoade, Stephen Uzor, and Lynne Baillie* 1

Walking in the Wild – Using an Always-On Smartphone Application to Increase Physical Activity
*Tim Harries, Parisa Eslambolchilar, Chris Stride, Ruth Rettie, and Simon Walton* 19

### Supporting Shared Activities

F-Formations in Cooking Together: A Digital Ethnography Using YouTube
*Jeni Paay, Jesper Kjeldskov, Mikael B. Skov, and Kenton O’Hara* 37

Practices Surrounding Event Photos
*Dhaval Vyas, Anton Nijholt, and Gerrit van der Veer* 55

Sharing Experiences over Video: Watching Video Programs together at a Distance
*Anna Macaranas, Gina Venolia, Kori Inkpen, and John C. Tang* 73

### Sustainability

Exploring Reactions to Widespread Energy Monitoring
*James A. Colley, Benjamin Bedwell, Andy Crabtree, and Tom Rodden* 91

HCI for City Farms: Design Challenges and Opportunities
*Peter Lyle, Jaz Hee-jeong Choi, and Marcus Foth* 109

Towards Engaged Consumption: New Sources of Inspiration for Eco-feedback Design
*Stephen Snow and Margot Brereton* 117

Sustainability at Home: An Exploratory Study on Monitoring Needs and Energy Management Actions of Solar Power Producers
*Dounia Lahoual and Myriam Fréjus* 125
Watts Burning on My Mailbox: A Tangible Art Inspired Eco-feedback

Visualization for Sharing Energy Consumption.................. 133
Filipe Quintal, Mary Barreto, Nuno Nunes, Valentina Nisi, and
Lucas Pereira

Tabletop Computing

Dynamic Spatial Positioning: Physical Collaboration around Interactive

Table by Children in India .................................... 141
Izdihar Jamil, Kenton O'Hara, Mark Perry, Abhijit Karnik,
Mark T. Marshall, Swathi Jha, Sanjay Gupta, and
Sriram Subramanian

Dynamic Tangible User Interface Palettes .................... 159
Martin Spindler, Victor Cheung, and Raimund Dachselt

TIDE: Lightweight Device Composition for Enhancing Tabletop

Environments with Smartphone Applications .................... 177
Léo Sicard, Aurélien Tabard, Juan David Hincapié-Ramos, and
Jakob E. Bardram

Text Comprehensibility

Evaluating the Effect of Phrase Set in Hindi Text Entry ........ 195
Mohit Jain, Khushboo Tekchandani, and Khai N. Truong

Frequent Words Improve Readability and Short Words Improve

Understandability for People with Dyslexia.................... 203
Luz Rello, Ricardo Baeza-Yates, Laura Dempere-Marco, and
Horacio Saggion

TicQR: Flexible, Lightweight Linking of Paper and Digital Content

Using Mobile Phones ............................................ 220
Jennifer Pearson, Simon Robinson, George Buchanan, and
Matt Jones

Tracking Eyes and Head

One Half or 50%? An Eye-Tracking Study of Number Representation

Readability .................................................... 229
Luz Rello, Susana Bautista, Ricardo Baeza-Yates, Pablo Gervás,
Raquel Hervás, and Horacio Saggion

Studying a Head Tracking Technique for First-Person-Shooter Games

in a Home Setting............................................ 246
Torben Sko, Henry Gardner, and Michael Martin
Tracking Eyes in Service Prototyping .................................... 264
Monchu Chen and Veraneka Lim

Usability Evaluation and Technology Acceptance

Did We Miss Something? Correspondence Analysis of Usability Data ... 272
Stanislaw Zabramski and Wolfgang Stuerzlinger

Social Overlays: Collectively Making Websites More Usable ............ 280
Tao Dong, Mark S. Ackerman, Mark W. Newman, and
Gaurav Paruthi

Usability Evaluation in a Digitally Emerging Country: A Survey
Study .................................................................... 298
Fulvio Lizano, Maria Marta Sandoval, Anders Bruun, and Jan Stage

Understanding Diversity – The Impact of Personality on Technology
Acceptance.................................................................. 306
Kay Behrenbruch, Matthias Söllner, Jan Marco Leimeister, and
Ludger Schmidt

User Preferences and Behaviour

A Vocabulary to Access Users' Cultural Perspectives
in Human-Computer Interaction .................................... 314
Catia Maria Dias Ferreira, Luciana Cardoso de Castro Salgado, and
Clarisse Sieckenius de Souza

Characteristics of Elderly User Behavior on Mobile Multi-touch
Devices .................................................................... 323
Susumu Harada, Daisuke Sato, Hironobu Takagi, and
Chieko Asakawa

From Persona to Techsona ............................................ 342
Susanne Bødker and Clemens Nylandsted Klokmose

Going Global with Personas ............................................ 350
Lene Nielsen, Kira Storgaard Nielsen, Jan Stage, and Jane Billestrup

On Users' Preference on Localized vs. Latin-Based CAPTCHA
Challenges .................................................................. 358
Christos Fidas and Artemios G. Voyiatzis
## User Requirements Capture and Analysis

Designing for the Functionality South African Internet Banking
Websites Should Provide to Address the Needs of Generation-Y
Users
Sebabatso Mtimkulu, Judy van Biljon, and Tobias van Dyk
366

"Nobody Other Than Me Knows What I Want:" Customizing a Sports
Watch
Piia Nurkka
384

Online Requirements and Portal Design for Female University
Science and Technology Students in Kenya
Stephen Kimani, Eunice Njeri, and John Njue
403

## UX in Work/Educational Contexts

Finger on the Pulse: The Value of the Activity Stream
in the Enterprise
Ido Guy, Tal Steier, Maya Barnea, Inbal Ronen, and Tal Daniel
411

Relationship-Based Business Process Crowdsourcing?
Jacki O'Neill and David Martin
429

User Experience and Learning Experience in Online HCI Courses
Saila Ovaska
447

## Voice/Sound-Based Computing

Audvert: Using Spatial Audio to Gain a Sense of Place
Liam Betsworth, Nitendra Rajput, Saurabh Srivastava, and
Matt Jones
455

Rhythms of the Domestic Soundscape: Ethnomethodological
Soundwalks for Phatic Technology Design
Hanif Baharin, Sean Rintel, and Stephen Viller
463

"Roger that!" — The Value of Adding Social Feedback
in Audio-Mediated Communications
Rahul Rajan, Joey Hsiao, Deven Lahoti, and Ted Selker
471

Supporting Voice Content Sharing among Underprivileged People
in Urban India
Christian Remy, Sheetal K. Agarwal, Arun Kumar, and
Saurabh Srivastava
489
Interactive Posters

<table><tbody><tr><td>Adding Vibrotactile Feedback to Large Interactive Surfaces<br><i>Julian Seifert, Markus Packeiser, and Enrico Rukzio</i></td><td>507</td></tr><tr><td>Analysis and Visualization of Interactions with Mobile Web Applications<br><i>Paolo Burzacca and Fabio Paternò</i></td><td>515</td></tr><tr><td>Beats Down: Using Heart Rate for Game Interaction in Mobile Settings<br><i>Claudia Stockhausen, Justine Smyzek, and Detlef Krömker</i></td><td>523</td></tr><tr><td>Cultural Congruence and Rating Scale Biases in Homepages<br><i>Gitte Lindgaard, Cathy Dudek, and Gerry Chan</i></td><td>531</td></tr><tr><td>Diverse Ecologies – Interdisciplinary Development for Cultural Education<br><i>Michael Heidt, Kalja Kanellopoulos, Linda Pfeiffer, and Paul Rosenthal</i></td><td>539</td></tr><tr><td>Evaluation of PhonAge: An Adapted Smartphone Interface for Elderly People<br><i>Farah Arab, Yasir Malik, and Bessam Abdulrazak</i></td><td>547</td></tr><tr><td>Experimentally Manipulating Positive User Experience Based on the Fulfilment of User Needs<br><i>Andreas Sonnleitner, Marvin Pawlowski, Timm Kässer, and Matthias Peissner</i></td><td>555</td></tr><tr><td>Floffy: Designing an Outdoor Robot for Children<br><i>Omar Mubin, Luke Vink, Pieter Oosterwijk, Abdullah Al Mahmud, and Suleman Shahid</i></td><td>563</td></tr><tr><td>Human-Spreadsheet Interaction<br><i>Andrea Kohlhase</i></td><td>571</td></tr><tr><td>Improving Students Learning Programming Skills with ProGames – Programming through Games System<br><i>Raquel Hijón-Neira, Ángel Velázquez-Iturbide, Celeste Pizarro-Romero, and Luís Carriço</i></td><td>579</td></tr><tr><td>Long-Term Experiences with an Iterative Design of a QR-Code-Based Payment System for Beverages<br><i>Max-Emanuel Maurer, Alexander De Luca, Alina Hang, Doris Hausen, Fabian Hennecke, Sebastian Loehmann, Henri Palleis, Hendrik Richter, Simon Stusak, Aurélien Tabard, Sarah Tausch, Emanuel von Zezschwitz, Franziska Schwamb, Heinrich Hussmann, and Andreas Butz</i></td><td>587</td></tr></tbody></table>
<table>
  <tbody>
    <tr>
      <td>Moment Machine: Opportunities and Challenges of Posting Situated Snapshots onto Networked Public Displays</td>
      <td>595</td>
    </tr>
    <tr>
      <td>Nemanja Memarovic, Ava Fatah gen Schieck, Efstathia Kostopoulou, Moritz Behrens, and Martin Traunmueller</td>
      <td></td>
    </tr>
    <tr>
      <td>Overview Scrollbar: A Scrollbar Showing an Entire Document as an Overview</td>
      <td>603</td>
    </tr>
    <tr>
      <td>Ko Mizoguchi, Daisuke Sakamoto, and Takeo Igarashi</td>
      <td></td>
    </tr>
    <tr>
      <td>Participatory Design for Cultural Representation: A Cultural Transparency Perspective</td>
      <td>611</td>
    </tr>
    <tr>
      <td>Amalia G. Sabiescu and Nemanja Memarovic</td>
      <td></td>
    </tr>
    <tr>
      <td>Reducing Driver Task Load and Promoting Sociability through an Affective Intelligent Driving Agent (AIDA)</td>
      <td>619</td>
    </tr>
    <tr>
      <td>Kenton Williams and Cynthia Breazeal</td>
      <td></td>
    </tr>
    <tr>
      <td>Semantic Modelling in Support of Adaptive Multimodal Interface Design</td>
      <td>627</td>
    </tr>
    <tr>
      <td>Elena Tsiporkova, Anna Hristoskova, Tom Tourwé, and Tom Stevens</td>
      <td></td>
    </tr>
    <tr>
      <td>Supporting Improved Maternity Care by Midwives: Design Opportunities and Lessons Learned</td>
      <td>635</td>
    </tr>
    <tr>
      <td>Abdullah Al Mahmud and David V. Keyson</td>
      <td></td>
    </tr>
    <tr>
      <td>Technology Enhanced PBL in HCI Education: A Case Study</td>
      <td>643</td>
    </tr>
    <tr>
      <td>Christina Vasiliou, Andri Ioannou, and Panayiotis Zaphiris</td>
      <td></td>
    </tr>
    <tr>
      <td>The ‘Relay Ideation’ Technique: Moving from Problem Understanding to Problem Solving in the Design Process</td>
      <td>651</td>
    </tr>
    <tr>
      <td>Karin Slegers, Pieter Duysburgh, and An Jacobs</td>
      <td></td>
    </tr>
    <tr>
      <td>The Effect of Stress on Cognitive Load Measurement</td>
      <td>659</td>
    </tr>
    <tr>
      <td>Dan Conway, Ian Dick, Zhidong Li, Yang Wang, and Fang Chen</td>
      <td></td>
    </tr>
    <tr>
      <td>The PEW Framework for Worth Mapping</td>
      <td>667</td>
    </tr>
    <tr>
      <td>Fatoumata Camara, Gaëlle Calvary, and Rachel Demumieux</td>
      <td></td>
    </tr>
    <tr>
      <td>The Profile of Law Clerks Using Judiciary Informatics in Turkey</td>
      <td>675</td>
    </tr>
    <tr>
      <td>Zerrin Sungur, Özlem Alpu, Özlem Oktal, and Berna Yazıcı</td>
      <td></td>
    </tr>
    <tr>
      <td>Towards a Communication System for People with Athetoid Cerebral Palsy</td>
      <td>681</td>
    </tr>
    <tr>
      <td>Yohan Guerrier, Christophe Kolski, and Franck Poirier</td>
      <td></td>
    </tr>
    <tr>
      <td>Towards Supporting the Existing Workplace Practices of a Community of Brazilian Healthcare Professionals</td>
      <td>689</td>
    </tr>
    <tr>
      <td>Roberto Calderon, Sidney Fels, and Junia Anacleto</td>
      <td></td>
    </tr>
  </tbody>
</table>
Traveller: An Interactive Cultural Training System Controlled

by User-Defined Body Gestures .................................... 697

Felix Kistler, Elisabeth André, Samuel Mascarenhas, André Silva,
Ana Paiva, Nick Degens, Gert Jan Hofstede, Eva Krumhuber,
Arvid Kappas, and Ruth Aylett

Usability Guidelines for Mobile Devices: Length of Hyperlinks ........ 705

Eva Garcia-Lopez, Antonio Garcia-Cabot, Luis de-Marcos, and
Jose-Ramon Hilera

User-Centered Design between Cultures: Designing for and

with Immigrants ........................................................ 713

Jan Bobeth, Stephanie Schreitter, Susanne Schmehl,
Stephanie Deutsch, and Manfred Tscheligi

Using Graphical Representations to Support the Calculation of Infusion

Parameters .................................................................... 721

Sandy J.J. Gould, Anna L. Cox, and Duncan P. Brumby

Visual Conversational Interfaces to Empower Low-Literacy Users ...... 729

Sheetal K. Agarwal, Jyoti Grover, Arun Kumar, Monia Puri,
Meghna Singh, and Christian Remy

Visual Indication while Sharing Items from a Private 3D Portal Room

UI to Public Virtual Environments .................................... 737

Minna Pakanen, Leena Arhippainen, Jukka H. Vatjus-Anttila, and
Olli-Pekka Pakanen

Web Design for Science Museum towards Engaging User Experience .... 745

Mohd Syaheezam Asyraq Yamin and Eswati Azni Jaafar

## Industry Tracks

Lessons Learned from Designing Non-traditional Interfaces

for Educational Applications in South Africa ........................ 755

Michael Wolf

The Bigger Picture: The Use of Mobile Photos in Shopping............ 764

Maryam Tohidi and Andrew Warr

## Panels

Human-Centred Design: What's Happening in African Industry? ........ 772

Susan Dray, Phil Barrett, Mark Kamau, Edna Chelule, and
Tamara Alsheikh
Panel on Community Collaboration .................................... 773
Anicia Peters, Darelle van Greunen, Gereon Koch Kapuire,
Anupama Saxena, Dan Orwa, Bongiwe Dlutu-Siya, and
Nicola J. Bidwell

Seeing ‘the Obvious’ as Subject and Object of Cross-Cultural HCI
Design ........................................................................ 774
Jose Abdelnour-Nocera, Heike Winschiers, Torkil Clemmensen, and
Christian Sturm

What Can Design Laboratories Do? .................................... 775
Thomas Binder, Lone Malmborg, Per-Anders Hillgren,
Jörn Messeter, Yanki Lee, and Sibukele Gumbo

## Special Interests Groups

Promoting Human-Computer Interaction Values and Practices
in Small and Emerging Economies .................................... 776
David Lamas, Panayiotis Zaphiris, Georgios Christou, and
Alfredo Terzoli

## Tutorial

Designing High-Quality Surveys for HCI Research .................... 777
Hendrik Müller and Aaron Sedley

## Workshops

Building Community Collaboration.................................... 778
Anicia Peters, Darelle van Greunen, Heike Winschiers-Theophilus,
Shilumbe Chivuno-Kuria, Kagonya Awori, and Anirudha Joshi

Challenges from the Future: Bridging the Gaps through HCI
Education .................................................................... 779
Lars Oestreicher and Paula Alexandra Silva

Human Work Interaction Design (HWID): Past History and Future
Challenges .................................................................... 780
Torkil Clemmensen, Jose Abdelnour-Nocera, Arminda Lopes, and
Bengt Sandblad

Participatory Design for Persons with Cognitive or Sensory
Impairments .................................................................. 781
Karin Slegers, Pieter Duysburgh, Niels Hendriks, and Helma van Rijn

Peripheral Interaction: Embedding HCI in Everyday Life ................ 782
Doris Hausen, Saskia Bakker, Elise van den Hoven,
Andreas Butz, and Berry Eggen
Rethinking Universal Accessibility: A Broader Approach Considering
the Digital Gap.................................................. 783
*Julio Abascal, Simone Diniz Junqueira Barbosa, Andrew Dearden,
Anirudha Joshi, Daniel Orwa Ochieng, Gerhard Weber, and
Panayiotis Zaphiris*

Second International Workshop on (Re)Creating Lively Cities through
Ambient Technologies: Arts, Culture and Gastronomic Experiences*.... 784
*Artur Lugmayr, Jaz Hee-jeong Choi, and Kirralie Houghton*

Urban Agriculture: A Growing Field of Research .................... 785
*Peter Lyle, Jaz Hee-jeong Choi, Shaun Lawson, Christopher Lueg,
Alan Chamberlain, Marcus Foth, Anna Meroni, and Margot Brereton*

Walking for Data .................................................. 786
*Mads Bødker, David Browning, and Nina Dam Meinhardt*

Author Index.................................................. 787