Evaluation of a Location-Linked Notes System

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Manas Tungare, Ingrid Burbey, Manuel A. Pérez-Quiñones, Ananth Raghavan; Evaluation of a Location-Linked Notes System.; Proceedings of the 44th ACM SouthEast Conference (ACM SE 2006).

Manas Tungare, Ingrid Burbey, Manuel A. Pérez-Quiñones, Ananth Raghavan; Evaluation of a Location-Linked Notes System.; Proceedings of the 44th ACM SouthEast Conference (ACM SE 2006).

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  • 1. Evaluation of a Location-Linked Notes System Manas Tungare Ingrid Burbey Manuel Pérez-Quiñones Ananth Raghavan
  • 2. Location-Aware Applications • Location as part of context • Customize behavior depending on context • Several new genres of applications possible • How to determine location • GPS, RFID, 802.11, SeeVT
  • 3. Location-Linked Notes • Messages to others at a given location • Importance of location • Is location always important? • Importance to a campus community • Artificial restrictions in prior systems
  • 4. Design Factors • Domain: public or private (to groups) • Message expiration • Messages about a location vs. messages at a location • Remote versus in-situ authoring • Remote versus in-situ access • Push versus pull access strategy
  • 5. Architecture Network
  • 6. PDA Interface
  • 7. Wizard of Oz • A prototype that works by having someone behind-the-scenes who is pulling the levers and flipping the switches. • User does not known that the responses are being generated by a human, not a computer. • Allows testing of difficult interface concepts before a system is fully working.
  • 8. Research Questions • What are our users’ opinions and perceptions of: • Remote authoring / In-situ authoring • Remote access / In-situ access • Push / pull access
  • 9. Method: Survey + Study • Survey to assess potential uses • Users: Students (5 grad, 1 high-school, 1 middle-school) and a Professor. • Satisfaction Questionnaire
  • 10. Tasks • 2 at specific location • Note at the Grad Lab • “Leaving for lunch” • 2 from any location • Note for yourself at the Student Center • Check notes at a professor’s door
  • 11. Results from Survey • Most users would use it daily • 1 user: weekly • Notes for oneself are useful only if pushed
  • 12. Results from Study • Users preferred being able to write/access notes from a remote location • Priority to leave notes for: yourself > friends > professors > public
  • 13. Findings • Even in location-aware systems, there is value in remote access • Need not be there to retrieve messages • Need not be there to leave messages
  • 14. Questions ? ?