User-model-based adaptability evaluation for context-aware systems

Most simulation studies of context-aware systems have not involved the aspect of changes of the environment or users´ context, notably changes triggered by the elapse of time or users´ own action. We proposed an evaluation method to simulate user operations with a user model in which the user preference or the user context changes based on events such as sensor information or the user´s actions. Through implementation of an evaluation system for a drive planner system, we confirmed a virtual user´s action and acquired directions for evaluation of context-aware systems.