Ubi-UCAM: A Unified Context-Aware Application Model

  • Seiie Jang
  • Woontack Woo
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2680)


Context-aware application plays an important role in the ubiquitous computing (ubiComp) environment by providing the user with comprehensive services even without any explicitly triggered command. In this paper, we propose a unified context-aware application model which is an essential part to develop various applications in the ubiquitous computing environment. The proposed model affirms the independence between sensor and application by using a unified context in the form of Who (user identity), What (object identity), Where (location), When (time), Why (user intention/emotion) and How (user gesture), called 5W1H. It also ensures that the application exploits a relatively accurate context to trigger personalized services. To show usefulness of the proposed model, we apply it to the sensors and applications in the ubiHome, a test bed for ubiComp-enabled home applications. According to the experimental results, without loss of generality, we believe it can be extended to various context-aware applications in daily life.


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  1. 1.
    Jang, S., Lee, S., Woo, W.: Research Activities on Smart Environment. IEEK, Magazine. Vol. 28. (2001) 85–97.Google Scholar
  2. 2.
    Yoon, J., Lee, S., Suh, Y., Ryu, J., Woo, W.: Information Integration System for User Recognition and Location Awareness in Smart Environment. KHCI 2002.Google Scholar
  3. 3.
    Mozer, M.: The Neural Network house: An environment that adapts to its inhabitants. In M. Coen (Ed.), Proceedings of the American Association for Artificial Intelligence Spring Symposium on Intelligent Environments. Menlo, Park, CA: AAAI Press. (1998) 110–114Google Scholar
  4. 4.
    Shafer, S., Brumitt, B., Meyers, B.: The EasyLiving Intelligent Environment System. CHI Workshop on Research Directions in Situated Computing (2000)Google Scholar
  5. 5.
    Dey, A., Salber, D., Abowd, G.: A Context-aware Infrastructure for Smart Environments. In Proceedings of the 1st International Workshop on Managing Interactions in Smart Environments (MANSE’ 99). Dublin, Ireland (1999)Google Scholar
  6. 6.
    Marsic, Medl, I. A., Flanagan, J.: Natural communication with Information Systems. Proceedings of the IEEE. Vol.88, No. 8. (2000) 1354–1366CrossRefGoogle Scholar
  7. 7.
    Jang, S., Woo, W.: Architecture of Context based Application in Ubiquitous Computing Environment. KHCI (2003) 346–351Google Scholar
  8. 8.
    Dey, A. K., Abowd, G.: The Context Toolkit: Aiding the Development of Context-Aware Applications. Proceedings of the Workshop on Software Engineering for Wearable and Pervasive Computing. Limerick, Ireland (2000)Google Scholar
  9. 9.
    Salber, D., Dey, A. K., Abowd, G. D.: The Context Toolkit: Aiding the Development of Context-Enabled Applications. In the Proceedings of the 1999 Conference on Human Factors in Computing Systems. Pittsburgh, PA. (1999) 434–441Google Scholar
  10. 10.
  11. 11.
  12. 12.
    Schilit, B., Theimer: M. Disseminating Active Map Information to Mobile Hosts. IEEE Networks. Vol.8. No.5. (1994) 22–32CrossRefGoogle Scholar
  13. 13.
    Dey, A. K.: Understanding and Using Context. Personal and Ubiquitous Computing, Special issue on Situated Interaction and Ubiquitous Computing. Vol.5. No.1 (2001)Google Scholar
  14. 14.
  15. 15.
    Hong, D., Woo, W.: A Vision-based 3D Space Sensor for Controlling ubiHome Environment. In Proceeding of HCI (2003)Google Scholar
  16. 16.
    Oh, Y., Jang, S., Woo, W.: User Authentication and Environment Control using Smart Key. KSPC 2002. Vol. 15. No. 1. (2002) 264Google Scholar
  17. 17.
    Lee, S., Song, H., Ryu, J., Woo, W.: Music Player with the Smart Floor. KSPC 2002. Vol. 15. No. 1. (2002) 158Google Scholar
  18. 18.

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Seiie Jang
    • 1
  • Woontack Woo
    • 1
  1. 1.KJIST U-VR Lab.GwangjuS. Korea

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