1. Beyond Prototypes: Challenges in Deploying Ubiquitous Systems N. Davies and H. Gellersen IEEE pervasive computing, 2002 Presenter: Min Zhang (mzhang@mmlab.snu.ac.kr)mzhang@mmlab.snu.ac.kr

2. Contents Introduction Ubiquitous information and communication Experiences in deploying ubiquitous systems Research challenges Summary

3. Introduction Mark Weiser’s vision of Ubiquitous Computing in 1991 – Still futuristic today Many technical and sociological challenges – Creating system beyond mere laboratory prototypes Discuss research challenges!!

4. Ubiquitous information and communication Technology has advanced towards Ubiquitous computing – Global Positioning System (GPS) – Radio Frequency Identification (RFID) Striking developments – The emergence of the Web a global information and service resource – Mobile telephony Widespread adoption

5. Active Bat System Conducted at AT&T lab. in Cambridge Indoor positioning system – Using sensor and badge

6. Lancaster’s Guide System Provides visitors with tour guide information – Based on visitor’s interest and movement Use – Tablet PC – WLAN deployed around major attractions

7. MediaCup Project University of Karlsruhe, Germany Cups equipped with sensors and wireless communications Not used Someone drinks Someone plays with the cup

8. Research Challenges Component interaction – Should be designed in an open and extensible manner Adaptation and Contextual sensitivity – might reconfigure applications involving multiple components Appropriate management mechanism – Unlikely occurs within the context of a single administrative domain

9. Research Challenges Component association and Task analysis – Accurately determine a user’s task and intention – Develop associations between components Viable economic models – A single “killer” application is unsuccessful – Many small contributions from applications that use the component

10. Research Challenges User interface integration – Need coordination between applications – To ensure a reasonable user interface Privacy and Security – Empower users to evaluate the trade-off Protection of privacy VS. improved service – Legislation must define the boundaries

11. Summary Technology has advanced towards UbiComp – GPS, RFID, Web, Mobile Phone Many researches for developing prototypes Research Challenges for Ubiquitous Computing – Technical and sociological challenges – Mainly focus on “integration”