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You are warmly invited to participate in a Tutorial at HCI International 2009 San Diego CA. Monday 20 July 2009, 14:00-17:30 Half day tutorial.
Title: A SEMANTIC APPROACH TO THE USE OF DESIGN HEURISTICS
Objective:
a) Use semantic networks of heuristics to select the most appropriate ones for a target group of technologies.
b) Use cognitive user models to select the most appropriate ones for a target group of user requirements.
c) Use simple neural networks to predict user evaluations of an accessible, interactive system.
Content:
WORKSHOP: A NEW STRUCTURED APPROACH TO THE USE OF DESIGN HEURISTICS
Design heuristics have been important for interactive system design for many years (Wang and Lum 1971; Nielsen 1994 and Tognazzini). Their use has grown exponentially. A Google search (useit.com) found the following numbers of relevant references to design heuristics: 1998: 600 citations and 2005: 58,000 citations. However, these numbers do not show the chosen heuristics. Our survey (CIRCUA) found that most researchers develop ad-hoc lists, whilst a sizeable minority use or adapt Nielsen's heuristics. The emerging consensus is that different technologies require different heuristics, but that there is no clear picture as to how to select those heuristics. However, our new work shows that busy practitioners and researchers do not need to reinvent their own heuristics. We found that: Different technologies are depicted by a semantic network in which similar technologies are closer to each other than less similar technologies. Different user requirements are depicted by a cognitive user model. Simple neural networks can learn to predict users' heuristic evaluations. On this basis, we have created a new structured set of heuristics from which to select relevant subsets to match different technologies and user requirements.
In this workshop, you will be given an expert briefing on these new developments in the application of heuristics to accessible, interactive systems design. Through the use of workable, case studies you will be shown how to:
a) Use semantic networks of heuristics to select the most appropriate ones for a target group of technologies.
b) Use cognitive user models to select the most appropriate ones for a target group of user requirements.
c) Use simple neural networks to predict user evaluations of an accessible, interactive system.
Participants in this workshop will also be able to participate in future development programmes with these methodologies.
I hope that you will be able to join us.
Regards
Ray Adams.
Dr Ray Adams
Centre Head
CIRCUA
Collaborative International Research Centre for Universal Access
School of Engineering and Information Sciences
Middlesex University
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