Quality of Context in the internet of things: Parametres and models.

Abstract

In the internet of things word, the ability of a system to adapt and react to the changes accruing in the environment is the most important feature in a context aware system. This system relays on gathered context information that is imperfect due to the limitation of the sensors and the dynamicity of the environment, therefore, considering the quality of the context (QoC) is curial and important to ensure the right system performance. In this paper, we present the concepts of context, context awareness, and QoC. We define the most relevant QoC parameters, present a comparison of their relevant denomination and introduce our QoC parameters definition. Finally, we highlight the main QoC evaluation method and models that been suggested in the literature.