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

This map data high refinement system is for correcting the data format and refinement degree of map data so as to conform to the specifications of the distribution destination 5, and is provided with:a data complementing unit 13 that performs data complementation on lower-intermediate level map data 2, 3, the refinement degree of which is at a lower level or an intermediate level, so as to increase the refinement degree; an authoring unit 12 for editing map data such that the data format and/or the refinement degree conforms to various types of specifications; and a database 16 for accumulating the edited map data in such a manner as to be distributable as versatile data. The system is further provided with: a reliability evaluation unit 7 that performs information communication with thedistribution destination 5 and that is able to evaluate the reliability indicating the degree of conformity to the specifications of the versatile data distributed from the database 16; and a reliability registration unit 15 f