Low response time context awareness through extensible parameter adaptation with ORCA

• Published in: annals of telecommunications - annales des télécommunications
• Main Authors: Tigli, Jean-Yves, Lavirotte, Stéphane, Rey, Gaëtan, Hourdin, Vincent, Ferry, Nicolas, Vergoni, Christophe, Riveill, Michel
• Other Authors: Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe RAINBOW, Scalable and Pervasive softwARe and Knowledge Systems (Laboratoire I3S - SPARKS), Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA)-Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA), ANR, ANR-08-VERS-0005,CONTINUUM,CONTinuité de service en INformatique UbiqUitaire et Mobile(2008)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2012
• Subjects: Response time Dynamic adaptation Internalized context awareness Rule composition Extensible parameter adaptation; [INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE]; [INFO.INFO-IU]Computer Science [cs]/Ubiquitous Computing; [INFO.INFO-MC]Computer Science [cs]/Mobile Computing; Orca
• Online Access: https://hal.science/hal-01330324; https://doi.org/10.1007/s12243-012-0307-x

International audience Ubiquitous computing applications or widespread robots interactions execute in unforeseen environments and need to adapt to changeful available services, user needs, and variations of the environment. Context-awareness ability addresses such a need, enabling, through adaptation rules, applications to react to the perceived dynamic variations. Responses to adaptation have to be quick enough to maximize the time during which the application is coherent with its environment. Adaptation rules, associating variations of the environment to application reactions, are usually established at design time. However, in unforeseen and partially anticipated environments, we claim that adaptation rules have to be dynamically extensible to match previously unexpected variations. Our approach enables rule composition and ensures a deterministic result. We propose to use parameter adaptation to quickly respond to environmental variations and dynamic compositional adaptation to provide extensibility to the parameter adaptation. To foster even lower response times, we internalize context-awareness processing and decision into the application.