Date of Original Version



Conference Proceeding

Rights Management

Abstract or Table of Contents

Using 180 RFID tags to track and plot locations over time, guests to an event at the San Francisco Museum of Modern Art (SFMOMA) collectively constructed a public visualization of the individual and group activities by building a history of movement throughout the space over 120 minutes. The projected histogram builds over time, revealing crowd intelligence, patterns of group distribution, zones of intensity, and preferred locations. The real-time data is projected atop a geometrically constructed, three-dimensional tessellated screen whose texture and shape have been previously calculated using a model of expected user clustering and activity. The juxtaposition of real and expected data manifest itself in this group created visual artifact. This paper presents a structured design approach to location systems that ignores quality and reliability, celebrates the loss of privacy, integrates physical architecture into the output, and explores crowd generation of public digest artifacts. A resulting deployed system is described.


Copyright © 2007 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications Dept., ACM, Inc., fax +1 (212) 869-0481, or © ACM, 2007. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in the Proceedings of the 2007 conference on Designing for User eXperiences {978-1-60558-308-2 (2007)}