INFORMATION PROVIDING SYSTEM, PROVIDING INFORMATION UPDATING METHOD, INFORMATION TERMINAL DEVICE, INFORMATION TERMINAL DEVICE CONTROL METHOD, INFORMATION UPDATING SERVER, INFORMATION UPDATING SERVER CONTROL METHOD AND INFORMATION MEMORIZING MEDIUM

摘要

An information providing system is provided to precisely grasp really applicable situations and effectively update the providing information. A space management server (12) includes a user device (28) for transmitting a part of space information showing a structure of imaginary 3-dimensional space. The user device (28) includes means for receiving the space information, means for sharing a part of the space information with other user devices, means for obtaining user information of such other information terminal devices (28), and means for outputting the obtained user information and partially specific information to specify a part of the space information.