| 摘要 |
PROBLEM TO BE SOLVED: To easily discriminate whether a map image provided by a map image providing device needs to be updated.SOLUTION: Creation data of a map image for provision is created on the basis of a creation condition of the map image for provision accepted through an operation input part and map image data received from a map data provision part. The created map image for provision is provided according to a browsing request. The creation condition is associated with the creation data of the created map image for provision and then stored. Creation data of an update map image of the map image for provision is created on the basis of the stored creation condition and map data newly received from the map data provision part. The stored creation data of the map image for provision is compared with the creation data of the update map image of the map image for provision that is newly created and comparison result thereof is output. From the comparison result, an operator appropriately determines whether the data of the map image for provision needs to be updated. |
