The Context Modelling Toolkit: A Unified Multi-Layered Context Modelling Approach

The Context Modelling Toolkit: A Unified Multi-Layered Context Modelling Approach

Presentation given at EICS 2017, 9th ACM SIGCHI Symposium on Engineering Interactive Computing Systems, Lisbon, Portugal.

ABSTRACT: Context awareness plays an important role in recent smart environments and embedded interactions. In order to increase user satisfaction and acceptance, these context-aware solutions should be controllable by end users. Over the last few years we have therefore seen an emerging trend towards visual programming tools for context-aware applications based on simple "IF this THEN that" rules. However, existing solutions often do not support the simple reuse of the "this" part in order to define more sophisticated rules. Given that the desired level of control varies among individuals, we propose a unified multi-layered context modelling approach distinguishing between end users, expert users and programmers. Our Context Modelling Toolkit (CMT) consists of the necessary context modelling concepts and offers a rule-based context processing engine. We further illustrate how end users and expert users might interact with the CMT framework. Finally, we highlight some advantages of our Context Modelling Toolkit by discussing a number of use cases.

Research paper: https://beatsigner.com/publications/trullemans_EICS2017.pdf

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Beat Signer

June 27, 2017
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  1. Sandra Trullemans Lars Van Holsbeeke Beat Signer The Context Modelling

    Toolkit: A Unified Multi-layered Context Modelling Approach Sandra.Trullemans@vub.be WEB & INFORMATION SYSTEMS ENGINEERING
  2. End User Control of Smart Homes End User

  3. Related Work Jigsaw – Humble et al. ICAP – Dey

    et al. Ghiani et al.
  4. IF situation THEN action IF THEN I Sleep IF THEN

    Message in meeting Situation Situation
  5. Where We Can do Better • Sensor-level knowledge required •

    Hard for complex situations • Trade-off between control and automation Collaboration Reusing Situations
  6. Multi-layered Modelling Approach End User Expert User Programmer

  7. Context Modelling + Reusing Situations Templates

  8. Reusing Situations IF THEN I Sleep IF THEN I Sleep

    Situation Situation
  9. Situation Rules IF THEN I Sleep IF THEN Situation Situation

    I Sleep
  10. Context Modelling + Reusing Situations Templates

  11. Templates IF THEN Someone is Sleeping A Time A Bed

    A Room A State Situation Expert User
  12. Filling In a Template IF THEN Someone is Sleeping A

    Time A Bed A Room A State 20:00 Her Bed Her Bedroom OFF End User
  13. Multi-Layered Context Modelling Facts Actions Situations Rules Tool Rule Templates

    Filled in Template Situations End User Expert User Programmer
  14. Context Modelling Toolkit - CMT Programmer

  15. Client-Server Interactions

  16. Creation of a Template Expert User

  17. The IF side of a Situation Rule Expert User

  18. A New Situation on the THEN side Expert User

  19. Filling In a Template End User

  20. Filling In a Template End User

  21. Reusing Templates End User

  22. Making Context Rules End User

  23. Lessons Learned • Importance of intelligibility

  24. Context Modelling Toolkit (CMT) End User Expert User Programmer Collaboration

    Reusing Situations
  25. References • Sandra Trullemans, Lars Van Holsbeeke and Beat Signer,

    The Context Modelling Toolkit: A Unified Multi-Layered Context Modelling Approach, Proceedings of the ACM on Human-Computer Interaction (PACMHCI), 1(1), June 2017, presented at EICS 2017, 9th ACM SIGCHI Symposium on Engineering Interactive Computing Systems, Lisbon, Portugal, June 2017 – http://beatsigner.com/publications/trullemans_EICS2017.pdf