OZCHI

It is my privilege to welcome you to this most tropical OZCHI conference, to celebrate with you 20 years of conferences and to thank you for traveling so far to do so. I chose our theme to recognise how interactions are critically defined by, as much as defining of, life-experiences in varied settings. A theme resonating with locating OZCHI08 in a place that, I hope, will invoke reflection on the opportunities and responsibilities that designing for cultural, social and ecological diversity brings.

Welcome to the Proceedings of the Australasian Conference on Computer-Human Interaction. OZCHI is Australia and New Zealand's leading forum for work in all areas of human-computer interaction. As the annual conference for the Computer-Human Interaction Special Interest Group (CHISIG) of the Human Factors and Ergonomics Society of Australia (HFESA), OZCHI attracts an international community of researchers and practitioners with a wide range of interests, including usability, information architecture, interaction design, human factors and ergonomics, humancomputer interaction, information systems, software engineering, artificial intelligence, design, social sciences and management.

This year's conference attracted 57 long papers, 61 short papers and 4 case studies as submissions. From these papers we accepted 28 long papers, 31 short papers and 1 case study for inclusion at the conference and in the proceedings. We also accepted 6 demos - 4 were reviewed and 2 were invited. These proceedings can be cited as: Vetere, F., Graham, C. & Satchell, C. (2008). Proceedings of the 20th Australasian Conference on Computer-Human Interaction (OZCHI'08) --- Designing for Habitat and Habitus, Cairns, Australia, 8-12 December 2008. ISBN 0-9803063-4-5.