Place-Its: Location-Based Reminders on Mobile Phones

Timothy Sohn, Kevin Li, Gunny Lee, Ian Smith, James Scott and William Griswold
March 23, 2005

Context-awareness can improve the usefulness of automated reminders. However, prototypes of context-aware reminder applications have been confined to small research labs, making the evaluation of these tools throughout a personís daily life difficult. Mobile phones provide a convenient and truly ubiquitous platform for the detection of personal context such as location, as well as the delivery of reminders. An interesting question is whether this plat-form can be appropriated for location-based reminders, and how people would employ them. We present Place-Its, a location-based reminder application that runs on mobile phones, enabling people to use location-aware reminders throughout their daily lives. We describe the design of Place-Its and a two-week exploratory user study. The study reveals that location-based reminders are use-ful, in large part because people use location in nuanced ways. Mobile phones prove to be a compelling platform, providing convenience and adequate loca-tion sensing.

How to view this document

The authors of these documents have submitted their reports to this technical report series for the purpose of non-commercial dissemination of scientific work. The reports are copyrighted by the authors, and their existence in electronic format does not imply that the authors have relinquished any rights. You may copy a report for scholarly, non-commercial purposes, such as research or instruction, provided that you agree to respect the author's copyright. For information concerning the use of this document for other than research or instructional purposes, contact the authors. Other information concerning this technical report series can be obtained from the Computer Science and Engineering Department at the University of California at San Diego,

[ Search ]

This server operates at UCSD Computer Science and Engineering.
Send email to