This thesis describes the design and implementations of three applications, these applications were built for a City Guide for PDA.
The first application consists in Editor for the City Guide, the second application is a Web Server and the last application is the City Guide for PDA.
The Editor provides services for specific the map of the city and the points of interests in the city, for example, a museum, a restaurant, a church… that the tourist would like to see. The second application is a City Guide for PDA that permits to make the best route in the city to see all the points of interest selected. This route starts in the actual position of the user in the city; this position is got by GPS.