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The Re-Design of a PDA-based System for Supporting People with Parkinson’s Disease
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
2005 (English)In: People and Computers XVIII — Design for Life: Proceedings of HCI 2004, Springer London, 2005, 181-196 p.Conference paper (Refereed)
Abstract [en]

This paper describes the re-design of the user interface and the interaction for the PDA-based (Personal Digital Assistant) system mediPal. The aim with the system is to help people with Parkinson’s disease to a better life by supporting them in their day-to-day struggle with their chronic illness. In the paper we discuss the re-design — the process and the resulting user interface. The focus is on the evaluation of an earlier version of the system and how that led up to an improved user interface through user-centred systems design (UCSD). The paper also discusses how a practitioner can accomplish UCSD in the context of product development and consultant work.

Place, publisher, year, edition, pages
Springer London, 2005. 181-196 p.
National Category
Engineering and Technology
URN: urn:nbn:se:uu:diva-91788DOI: 10.1007/1-84628-062-1_12ISBN: 978-1-85233-900-5ISBN: 978-1-84628-062-7OAI: oai:DiVA.org:uu-91788DiVA: diva2:164636
Eight Conference on HCI, 2004
Available from: 2004-04-29 Created: 2004-04-29 Last updated: 2013-06-18Bibliographically approved
In thesis
1. User-Centred Systems Design: Designing Usable Interactive Systems in Practice
Open this publication in new window or tab >>User-Centred Systems Design: Designing Usable Interactive Systems in Practice
2004 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Användarcentrerad systemdesign : Design av användbara interaktiva system i praktiken
Abstract [en]

Have you ever been frustrated with that IT system at work that does not behave the way you expect it to? Or had problems with using the features on your new mobile phone? When systems and appliances do not support us in what we are doing, and do not behave the way we expect them to, then usability is neglected. Poor usability may be frustrating and irritating when trying out your mobile phone, but in a critical work situation poor usability may be disastrous.

In this thesis, user-centred systems design (UCSD) is advocated as an approach for facilitating the development of usable interactive systems. Systems that suit their intended use and users do not just “emerge”. They are the result of a UCSD process and a user-centred attitude during the development. This means in short that the real users and their needs, goals, context of use, abilities and limitations, drive the development – in contrast to technology-driven development. We define UCSD as: a process focusing on usability throughout the entire development process and further throughout the system life cycle. I argue that this definition along with a set of key principles do help organisations and individual projects in the process of developing usable interactive systems. The key principles include the necessity of having an explicit focus on users and making sure that users are actively involved in the process.

The thesis provides knowledge and insights gained from real-life situations about what UCSD is and how it can be put into practice. The most significant results are: the proposal of a clear definition of UCSD and a set of key principles encompassing UCSD; a process for usability design and the usability designer role. Furthermore, design cases from different domains are provided as examples and illustrations.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2004. 80 p.
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1104-232X ; 981
user-centred systems design, usability, human-computer interaction, system development, user involvement, usability design
National Category
Information Science
urn:nbn:se:uu:diva-4273 (URN)91-554-5975-7 (ISBN)
Public defence
2004-06-01, Room 211, MIC, Polacksbacken Hus 1, Uppsala, 13:15
Available from: 2004-04-29 Created: 2004-04-29 Last updated: 2013-06-20Bibliographically approved

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