Development and Evaluation of Context Aware Messaging Service using Location Information and Schedule Information

This paper describes a context-based dynamic messaging system, called ”Context Aware Messaging Service”. It uses schedule information and location information of the message addressee. According to the addressee’s communication context (schedule, location, and available media), the system selects the most suitable telephone number or e-mail address, and redirects each incoming message dynamically. It also writes the schedule and location information of users into a HTML file which users can share on the WWW. It will work as mobile groupware for mobile workers. Evaluating the system during a two-month experiment in Tokyo, we found that our system produced smooth communication and a greater feeling of teamwork.