The management of 1:250,000 national topograghic database of China

摘要

After the 1: 250,000 national topograghic database of China has been established, how to manage it, how to realize the value of the data, and how to protect the intellectual proprietary of the database have become important things , which let the data producer and the data user must face and deal with. This article outlines the method of management of 1: 250,000 national topograghic database of China, and the problems about the data security and being provided for various users.