After entered the 21 st century, people have to the fast-paced way of life and office. Information and automation is more popular, people also pay more and more attention on the efficiency of office. On this basis, more government-affiliated institution also pay more attention to the realization of office automation. There are many disadvantages of the traditional paper-based office and manual office, such as complex process, low efficiency, material redundancy, and so on, which has already could not adapt ...