Integrated Data Management for Mobile Services in the Real World

Market research companies predict a huge market for services to be delivered to mobile users. Services in5 clude route guidance, point-of-interest search, metering services such as road pricing and parking payment, traffic monitoring, etc. We believe that no single such service will be the killer service, but that suites of integrated services are called for. Such integrated services reuse integrated content obtained from multiple content providers. This paper describes concepts and techniques underlying the data management system deployed by a Danish mobile content integrator. While geo-referencing of content is important, it is even more important to relate content to the transportation infrastructure. The data management system thus relies on several sophisticated, integrated representations of the infrastructure, each of which supports its own kind of use. The paper covers data modeling, querying, and update, as well as the applications using the system.