GeoNotes: A Location-Based Information System for Public Spaces

The basic idea behind location-based information systems is to connect information pieces to positions in outdoor or indoor space. Through position technologies such as Global Positioning System (GPS), GSM positioning, Wireless LAN positioning or Bluetooth positioning, the system keeps track of where a terminal (and its user) is located in space. Via his terminal, the user is allowed to enter/upload information, to which the system automatically allocates a latitude-longitude coordinate. Later, the same user, or some other user, can access that information (again via their wirelessly connected terminals) when they enter the place. Although the digital information is stored on a remote server away from the actual location, the position technology and the mobile terminals give users the impression that information is actually “attached” to the place where the user is. In this way, location-based information systems create user experiences similar to those of Post-its, graffiti and public signs and posters. In both cases, an information space is “superim posed” on indoor/outdoor space.

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