A Study on Issues in Context-Aware Systems Based on a Survey and Service Scenarios

To realize a practical context-aware system, we should be clearly aware of important issues in context-aware systems. In this paper, we review a wide range of existing researches and the history of context-aware systems. We derive technical issues on realizing context-aware services based on the history and explain them. In addition, we describe seven context-aware service scenarios and discuss related issues. We believe that the derived issues from our survey and the proposed service scenarios will be used as useful reference for future researches.