Paper & ToCHI

May 7, 2012 @ 11:30, Room: 19AB

Chair: Barry Brown, University of California San Diego, USA
Looking Glass: A Field Study on Noticing Interactivity of Shop Windows - Paper
Community: design
Contribution & Benefit: Presents a field study on how passers-by notice whether a public display is interactive. Can be useful to design public displays and shop windows that more effectively communicate interactivity to passers-by.
Abstract » In this paper we present our findings from a lab and a field study investigating how passers-by notice the interactivity of public displays. We designed an interactive installation that uses visual feedback to the incidental movements of passers-by to communicate its interactivity. The lab study reveals: (1) Mirrored user silhouettes and images are more effective than avatar-like representations. (2) It takes time to notice the interactivity (approx. 1.2s). In the field study, three displays were installed during three weeks in shop windows, and data about 502 interaction sessions were collected. Our observations show: (1) Significantly more passers-by interact when immediately showing the mirrored user image (+90%) or silhouette (+47%) compared to a traditional attract sequence with call-to-action. (2) Passers-by often notice interactivity late and have to walk back to interact (the landing effect). (3) If somebody is already interacting, others begin interaction behind the ones already interacting, forming multiple rows. Our findings can be used to design public display applications and shop windows that more effectively communicate interactivity to passers-by.
Urban HCI: Spatial Aspects in the Design of Shared Encounters for Media Facades - Paper
Community: design
Contribution & Benefit: We propose a terminology and a model for large-scale screens in urban environments. This model can help future designs for Media Facades to become more balanced and of greater social value.
Abstract » Designing interactive applications for Media Facades is a challenging task. Architectural sized largescale screens can result in unbalanced installations, and meaningful interaction is easily overshadowed by the drastic size of the display. In this paper we reflect on urban technology interventions by analyzing their spatial configuration in relation to the structuring of interaction. We outline basic categories and offer a new terminology to describe these interactive situations designed for the built environment.
Chained Displays: Configurations of Public Displays can be used to influence Actor-, Audience-, and Passer-By Behavior - Paper
Community: design
Contribution & Benefit: Describes a design space and a field study on interactive non-flat public displays. Examines how non-flat displays impact actor-, audience- and passer-by behavior.
Abstract » Most interactive public displays currently rely on flat screens. This form factor impacts how users (1) notice the public display (2) develop motivation and (3) (socially) interact with the public display. In this paper, we present Chained Displays, a combination of several screens to create different form factors for interactive public displays. We also present a design space based on two complementary concepts, Focus and Nimbus, to describe and compare chained display configurations. Finally, we performed a field study comparing three chained displays: Flat, Concave, and Hexagonal. Results show that Flat triggers the strongest honeypot effect, Hexagonal causes low social learning, and Concave triggers the smallest amount of simultaneously interacting users among other findings.
Creating the Spectacle: Designing Interactional Trajectories Through Spectator Interfaces - ToCHI
Contribution & Benefit: Ethnographic study reveals how artists designed and participants experienced a tabletop interface, shedding light on the design of tabletop and tangible interfaces, spectator interfaces, and trajectories through display ecologies
Abstract » An ethnographic study reveals how professional artists created a spectator interface for the interactive game Day of the Figurines, designing the size, shape, height and materials of two tabletop interfaces before carefully arranging them in a local setting. We also show how participants experienced this interface. We consider how the artists worked with a multi-scale notion of interactional trajectory that combined trajectories through individual displays, trajectories through a local ecology of displays, and trajectories through an entire experience. Our findings shed light on discussions within HCI concerning interaction with tangible and tabletop displays, spectator interfaces, ecologies of displays, and trajectories through cultural experiences.