초록 열기/닫기 버튼

The contextual information system has to determine user's contexts precisely, create useful information out of them, and provide users with personalized services of high quality. Therefore, it has to match diverse contextual information to increase accuracy, which should be based on data matching through sensors built in various devices. Because various devices linked to a network create ever-changing contextual information in real time under IoT environment, it requires a system that can process the various contextual data into useful information. In this paper, the present study expanded the existing system, which collects context-awareness data and pro vide service on a single-user base, to multiuser-based contextual information system that can match data of different formats. In addition, the development system can accommodate all objects a nd users, so it can be applied to various application computing domains.