Abstract
In this paper we introduce the notion of media architectural interfaces (MAIs), which describe the relation between users engaging with dynamic content on media façades through tangible artifacts on street level. Firstly, we outline existing research concerned with public displays, urban screens and media facades, secondly we summarize related works that explore mediated urban interactions in connection with MAIs. We report on the technical set up of a field study, in which we deployed a novel tangible user interface (TUI), called the Smart Citizen Sentiment Dashboard (SCSD). This device gives citizens the opportunity to express their mood about local urban challenges. The input from this TUI is then instantly displayed on a very large (3700 sqm) media façade. The installation ran for three weeks during a media arts festival in Sao Paulo, Brazil. During this deployment period, we were able to gather data to help us understand the relationship between passers-by, participants, the TUI and the media façade. As a result we identified emergent behavior in the immediate space around the TUI and the wider urban space. The contribution this paper makes is in highlighting challenges in the design and deployment of large-scale media architectural interfaces.
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