Title:	CROWD BASED SHOPPING WITH THE ANGEL RING
Author(s):	Erion Elmasllari, René Reiners
ISBN:	978-972-8939-82-3
Editors:	Piet Kommers and Pedro Isaías
Year:	2013
Edition:	Single
Keywords:	Interaction Technique, Ubiquitous Computing, Implicit Interaction, Social Programming, Social Coordination
Type:	Full Paper
First Page:	225
Last Page:	232
Language:	English
Cover:
Full Contents:	click to dowload
Paper Abstract:	When shopping, people need to understand complicated or obfuscated information from food labels, like chemical names, E-numbers, etc. This is time-consuming and cognitively demanding. We developed an approach to support quick ”buy/no-buy” decisions during shopping. The system we developed uses implicit interaction to infer the user’s buying intentions and then provides unobtrusive feedback on that intention. The ”buy/no-buy” decision support is given via tactile feedback from a ring. Visual feedback from opportunistic ambient displays tells the reasons for the ”buy/no-buy” advice, as well as additional information. Familiar objects and natural, implicit gestures are used throughout the interaction. Filters, e.g. against allergy-inducing foods, can be programmed via the user’s mobile phone. This paper presents an extension to the system that allows filters to be shared on social networks, e.g. Twitter. On the one hand this approach simplifies customization of the system, since users can "follow" other users on Twitter and get automatic filters from like-minded people without any explicit interaction. On the other hand, such social integration enables new coordinated actions, for example automatically spreading information on dangerous ingredients, boycotting socially irresponsible brands, or favoring brands that take care of the environment.
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