A. Schmidt and C. Binnig (Germany)
Mobile information systems, location-based services, mobile devices, route planning
In the mobile information society, location-based services play an increasingly important role [1]. These services are to be accessed by users with a mobile end device (mobile phone, personal digital assistant or smart phone) for the use of city maps, route planning, navigation, traffic information, etc. Mobile end devices, however, do not have a computing power or storage capacity comparable to those of a personal computer or laptop. These deficits can be bypassed by employing special methods in the development of the respective applications. The present article outlines the experience gained in the development of a prototype for route computation in public transport networks (tram, underground, bus, etc.) to be used on a personal digital assistant (PDA) [2]. Subdivision of the route computation process into various steps for minimizing the computation expenditure on the mobile end device plays a significant role.
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