Welcome to the Urban Mixed Realities Workshop We would like to welcome you to the Urban Mixed Realities workshop which is being hosted as part of CHI 2008 in the stunning city of Florence. In common with CHI, this workshop embraces the themes of art, science and balance from the perspective of urban mixed realities and brings together researchers, practitioners and students from a range of backgrounds and countries. Urban mixed reality environments encompass a range of user experiences from games through to systems which help people uncover the invisible elements of the city. They also range from single user industrial applications through to multi-user shared experiences which utilise anything from mobile phones through to large multi-touch displays. However one aspect remains common across all these experiences in that they are inherently linked to the underlying aspects of the city, and in doing so rely as much on the advanced technologies as they do on the diversity of city life. In common with the field of mixed reality this workshop is very much a mesh of prior and new work, with classic HCI research through to CSCW, virtual environments, mobile spatial interaction, pervasive games and art all playing a part. However it was felt that the diverse array of user experience issues within urban mixed realities represented a real challenge and one which (as the field is growing in popularity) required a specific workshop. One which would allow us to explore the wide range of aspects such as: meshing reality with unreality; understanding constructive perception and social action; presence; group behaviours and co- location; materiality vs immateriality and meaning making. All papers and posters selected for presentation in the workshop were reviewed by a team of experts, and in all cases had to pass a quality threshold. We received three times more submissions for presentation than we could accept so in the end only chose the nine best papers, this resulted in us asking many people to present their work as a poster. We have also initiated a special edition of the “Psychnology Journal” which will cover much of the work presented today. The precise details of how to submit to the journal will be announced after the workshop. We would like to thank you for preparing and presenting your work. Kind regards, The Urban Mixed Realities Workshop Organising Committee Workshop Participants Daniel Belcher, HITLab, University of Washington USA Wolfgang Broll, Fraunhofer FIT, Germany Thomas Calvert, Simon Fraser University, USA Dimitris Charitos, University of Athens, Greece Giulio Jacucci, Helsinki Institute for Information Technology, Finland Tim Jay, University of Bath, UK Pamela Jennings, Carnegie Mellon University, USA Eric Kabisch, University of California, Irvine, USA Kari Kuutti, University of Oulu, Finland Silvia Lindtner, University of California, Irvine, USA Rod McCall, Fraunhofer FIT, Germany Joachim Rothauer, Sony Europe, Germany Markus Sareika, Technical University of Graz, Austria Tuomo Tuikka, VTT Technical Research Centre of Finland Sean White, Columbia University, USA Andrew Wilson, DRU/Blink, UK Organising and Programme Committee Rod McCall, Fraunhofer FIT, Germany Ina Wagner, Vienna University of Technology, Austria Kari Kuutti, University of Oulu, Finland Giulio Jacucci, Helsinki Institute for Information Technology, Finland Wolfgang Broll, Fraunhofer FIT, Germany Additional Programme Committee Members Luciano Gamberini, University of Padova, Italy Elisa Giaccardi, University of Colorado, USA Workshop Programme Organisers Wolfgang Broll is the head of the Collaborative, Virtual and Augmented Environments Department of Fraunhofer FIT in Germany. He is also a lecturer at RWTH Aachen. He has been doing research in the area of shared virtual environments, multi-user VR and 3D interfaces since 1993 and is currently involved in a number of EU projects related to mixed and augmented realities. Giulio Jacucci, Ph.D. leads Ubiquitous Interaction, a research group at the Helsinki Institute for Information Technology. Jacucci leads national and European funded research focusing on user experience of ubiquitous and mixed reality applications. His current research includes investigating advanced interaction techniques in particular in public spaces: ubiquitous and mixed reality applications for large-scale events, multimodal emotional interfaces for performative interaction in art and entertainment. Kari Kuutti is a professor in Human-Computer Interaction and Computer-Supported Cooperative Work in Department of Information Processing Science at University of Oulu, Finland. He has been working in the area of design issues related to space more than ten years, first in virtual reality and design of smart products, and currently in design of intelligent environments in cooperation with architects and urban planners. Rod McCall Ph.D. is a research scientist within the Collaborative Virtual and Augmented Environments Department at Fraunhofer FIT. Prior to this post he held an ERCIM Fellowship at Fraunhofer FIT and CRP-Gabriel Lippmann, Luxembourg. Until 2005 he was a Senior Research Fellow at Napier University, Edinburgh. For the last ten years he has been engaged in research related to sense of place and presence in mixed and virtual realities. Ina Wagner is Professor for Multidisciplinary Systems Design and Computer-Supported Co-operative Work (CSCW) and Head of the Institute for Technology Assessment and Design at TU Wien. She has been engaged in design-oriented work for the last ten years in the context of national and European projects. Among her research interests are novel interfaces, creative design methods, and the role of materiality as a resource for persuasive, narrative and experiential interactions. Programme Committee - The programme committee consists of the organisers plus the two following members. Luciano Gamberini, Ph.D. is Associate Professor at the Department of General Psychology at the University of Padova and head of the Human-Technology Laboratories www.psicologia.unipd.it/htlab. He is Editor in-Chief of PsychNology Journal www.psychnology.org and member of several other journals and conferences scientific boards including the International Workshop on Presence. He coordinates local units in several EU founded projects related to Presence, e-Health, Affective VR, Human-Computer Interaction. Recent research topics include: augmented interaction and social presence over networks, persuasive and serious games, elderly cognition & technology, training & collaborative environments, simulation and safe driving, NIRS-Virtual Reality based BCI. Luciano Gamberini is co-chair of the ACM Students Research Competition at CHI2008, Florence Elisa Giaccardi Ph.D. is a research scientist within the Center for LifeLong Learning & Design, University of Colorado, Boulder. She has been combining academic and professional activities in digital media, interaction design, and community development since 1996. Her recent work is focused on meta-design strategies for public authoring, collective storytelling, and place making, with a specific interest in issues of new heritage. Research topics include: cross-media interaction, social software and participative systems, locative media and collaborative mapping, and context and emotion aware interfaces. Workshop Agenda and Papers 08:30-09:00 Registration & Poster Set Up 09:00-09:05 Welcome 09:05-10:30 Session 1: Applications & Simulations Urban Sketcher: Mixing Realities in the Urban Planning and Design Process Markus Sareika and Dieter Schmalstieg JITC3: Just-In-Time Augmented Reality Command & Control Center, Tom Furness, Daniel Belcher, Xianhang Zhang and Anirudhan Vijayakanthan Pedestrian Navigation in Virtual Environments, Andrew Park, Tom Calvert, Paul Brantingham and Patricia Brantingham 10:30-11:15 Posters and Coffee 11:15-12:45 Session 2: Concepts and design approaches Visual Vectors and Public Interfacing, Pamela Jennings The Where of Mixed Reality: Some Guidelines for Design, Rod McCall, Iris Herbst, Anne-Kathrin Braun and Richard Wetzel Is “Presence” Important in Mobile Map Interaction? Antti Oulasvirta, Sara Eslander and Giulio Jacucci 12:45-14:00 Lunch 14:00-15:30 Session 3: Cases and Technology Approaches Mixed Realities in China’s Internet Cafes, Silvia Lindner and Bonnie Nardi Tagged Cities, Minna Isomursu and Tuomo Tuikka Orchestration and Direction of MR Games, Jan Ohlenburg, Wolfgang Broll and Irma Lindt 15:30-16:15 Poster Session and Coffee 16:15-17:15 Wrap up 20:00 Dinner Poster Sessions Emergent Narrative in Hybrid Environments, Eric Kabisch Progress towards Site Visits by Situated Visualization, Sean White, Petia Morozov, Ohan Oda and Steven Feiner Mixed Realities in the Living Tattoos Social Platform, Diana Domingues, Eliseo Raetegui, Gelso Reinaldo and Alexandre Lorenzatti Inter-Group Communication Via locative Media use in Urban Space, Charlampos Rizopoulos, Angeliki Gazi and Dimitris Charitos Moblogging the City: Accessing Personal Perceptions of Urban Spaces, Tim Jay and Danäe Stanton Fraser 12 Mixed Reality Principles of Animation – Based on Disneys Principles of Animation, Sabiha Ghellal, Jan Ohlenburg, Joachim Rothauer, Rod McCall and Stephan Harrer From City Poems to Aliens, Monsters and Sprites that Live in Phones: A Brief History of Story Worlds, Andrew Wilson and Derek Hales Urban Mixed Realities: Technologies, Theories and Frontiers Kari Kuutti Rod McCall Abstract Department of Information CVAE Department This workshop will address the approaches,