1. 1 Tejp: Ubiquitous Computing as Expressive Means of Personalising Public Space ACM – UbiComp, 2003 Jacobs, M., Gaye, L. and Holmquist, L.E. 2008. 10. 9 C.K. Hong

2. Introduction 2 How can people create their own ubiquitous computing infrastructures, to make it more personal, meaningful and expressive?

3. Introduction 3 Expressive Personalizing Parasiting Graffiti

4. Main idea Expressive ubiquitous computing Step towards a more poetic, strange, and personal expression in ubiquitous computing Personalizing public space Create layers of personal information and meaning in public space Parasiting and Detournment Purpose of the project Observe how emerging information content and user behaviours are influenced by the characteristics of the prototypes Exploring the actual physical interaction between the users and the information space. Low-tech prototypes which are not meant to become end-products. Introduction 4

5. Parasitic media Adding functionality, which is invisible, to a pre- existing system within the system margin of error Graffiti Detournement Deflection, diversion, misappropriation, hijacking, or otherwise turning aside from the normal course or purpose Reusing elements of well-known media to create a new work with a different message, often one opposed to the original Design Concepts 5

6. Overlaying personal traces on public space contains an audio message that once recorded can be left at hidden places in public spaces. When passers-by lean towards the device, this personal message is whispered to their ears. From ref.[3] Prototype 1 : Audio Tags 6

7. Prototype 2 : Glitch Revealing a hidden layer of personal communication in public space Array of loudspeakers picking up electromagnetic interferences from mobile phones. Interferences caused by passers-by’s messages and phone calls, are loudly broadcasted at a public place 7 [From Author’s home page]

8. Conclusion Expressive ubiquitous computing environments explores how to empower people with open pervasive means of structuring and personalizing their everyday environment through overlaying and uncovering meaning on public, physical space. Is that all? 8

9. Others’ opinions “Create playful or ambiguous experiences as a means, not only as an end, of research”[1] “New types of personal creativity and expression” [2] “Explores how temporal qualities can shape the social and spatial form for a communications system.”[3] 9

10. My Opinion(What I learned?) Expressive Ubiquitous Computing Learning from design theory Parasiting media => “Invisibility” Detournement => “Distributed output” XXX Ubiquitous Computing Creative Ubiquitous Computing? Clean Ubiquitous Computing? 10

11. Reference [1] M Chang, E Goodman, “FIASCO: game interface for location-based play”, Proceedings of the 5th conference on Designing Interactive Systems, 2004 [2] A Galloway, J Brucker-Cohen, L Gaye, E Goodman, D, “Panel : Design for hackability” Proceedings of the 5th conference on Designing Interactive Systems, 2004 [3] R Mazé, J Redström, “Form and the computational object“, Digital Creativity, 2005 Wireless and Mobile Communication Lab. 11