MAP DATA HIGH REFINEMENT SYSTEM, AND SERVER AND METHOD FOR SAME

A system of highly detailing map data for correcting a data format and a detail level of the map data adaptively to a specification of a distribution destination 5. The system includes a data supplementing unit 13 for supplementing medium-/low-detail map data 2, 3 to make the map data highly detailed, an authoring unit 12 for editing the map data adapted to the multiple specifications which differ at least in one of the data format and the detail level, and a database 16 for accumulating the edited map data to allow distribution of the map data as versatile data. The system further includes a reliability evaluation unit 7 for communicating with the distribution destination 5 via information, and allowing evaluation of reliability that indicates a degree to which the versatile data distributed from the database 16 are adapted to the specification, and a reliability registration unit 15 for registering the reliability in the database 16 by associating the evaluation of the reliability evaluation unit with the versatile data.