a CAPpella: programming by demonstration of context-aware applications

  • Authors:
  • Anind K. Dey;Raffay Hamid;Chris Beckmann;Ian Li;Daniel Hsu

  • Affiliations:
  • Intel Research, Berkeley, Berkeley, CA;Georgia Tech, Atlanta, GA;UC-Berkeley, Berkeley, CA;University of Washington, Seattle, WA;UC-Berkeley, Berkeley, CA

  • Venue:
  • Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
  • Year:
  • 2004

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Abstract

Context-aware applications are applications that implicitly take their context of use into account by adapting to changes in a user's activities and environments. No one has more intimate knowledge about these activities and environments than end-users themselves. Currently there is no support for end-users to build context-aware applications for these dynamic settings. To address this issue, we present a CAPpella, a programming by demonstration Context-Aware Prototyping environment intended for end-users. Users "program" their desired context-aware behavior (situation and associated action) in situ, without writing any code, by demonstrating it to a CAPpella and by annotating the relevant portions of the demonstration. Using a meeting and medicine-taking scenario, we illustrate how a user can demonstrate different behaviors to a CAPpella. We describe a CAPpella's underlying system to explain how it supports users in building behaviors and present a study of 14 end-users to illustrate its feasibility and usability.