Social Context: Supporting Interaction Awareness

in Ubiquitous EnvironmentsMUC course – Final examination

Stephane Dupin, February 2nd 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

Contents

1 – Today’s model for Ubiquitous ComputingSmart devices nowadays

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 ?

1 – Today’s model for Ubiquitous ComputingThree-tier layered model, and limitations

- … now it’s difficult to add constraints modeling !

- Conventional approach traditionaly encountered :

Abstracts relation with top and down but…

2 – Social context : next step towards smarter UCA sample use case : vehicles convoy

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…)

2 – Social context : next step towards smarter UCNew model : introducing roles and contracts

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

2 – Social context : next step towards smarter UCNew model : introducing roles and contracts

Taking our example back :

- Subjective contextviewed by leading car

- …but, how do playersmanage their contextsand bound to others ?

2 – Social context : next step towards smarter UCUpdated architecture, taking into account social context

- 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… ?

3 – Conclusion / perspectives

Thank you!

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) : http://www.ict.swin.edu.au/personal/jhan/jhanPapers/mobiquitous09.pdf

Jean-Yves Tigli’s homepage (2009-2010 MUC course) : http://rainbow.i3s.unice.fr/~tigli/doku/doku.php?id=muc_2009_2010

References

Contract sample