MUC course – Final examination Stephane Dupin, February 2 nd 2010

 “ The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it ” ◦ M. Weiser, 1991, "Computer for the 21st century"

 1 – Today’s model for Ubiquitous Computing ◦ Smart devices nowadays ◦ Three-tier layered model, and limitations  2 – Social context : next step towards smarter UC ◦ New challenge : weave relationships between devices ◦ A sample use case : vehicles convoy ◦ New model : introducing roles and contracts ◦ Updated architecture, taking into account social context  3 – Conclusion / perspectives

 My brand new super-connected device is able to : ◦ Retrieve data from sensors, adapt this data ◦ Communicate with other devices or services via explicit request or adhoc connection  What about dynamic adaptibility ?

- … now it’s difficult to add constraints modeling ! - Conventional approach traditionaly encountered : Abstracts relation with top and down but…

 A group of people rent two car to drive to a given location wherever  We want to be able to : ◦ Exchange information via portable devices through vehicle system ◦ Communicate between vehicles ◦ Retrieve data from surrounding infrastructures ◦ Use external services (insurance, travel guide…)

 Devices are viewed as players, performing specific roles, and own one or more social contexts

Taking our example back : - Subjective context viewed by leading car - …but, how do players manage their contexts and bound to others ?

- Externalisation of context (loose coupling with actors) - Event-driven and message based interactions between an actor and its social contexts

 Enable networks of social-aware devices  Better devices adaptability to specific scenarios  Multiple social-contexts per device…  Sharing of social-context : towards infinite possibilities… ?

Questions

 Tran, M.H.,Han, J and Colman, A. (2009) 'Social Context: Supporting Interaction Awareness in Ubiquitous Environments' In Proceedings of the 6th Annual International Conference on Mobile and Ubiquitous Systems (Mobiquitous’09) : apers/mobiquitous09.pdf apers/mobiquitous09.pdf  Jean-Yves Tigli’s homepage ( MUC course) : ?id=muc_2009_ ?id=muc_2009_2010