"Ⅰ . Economic benefit: (1) Reduce administrative handling time of supervisors: save 72 days of working hours. (2) Reduce the auditing time of Human Resource Office: Save working 2 days of hours. (3) Reduce printing and storage space cost Ⅱ . Reduce risks of noncompliance of laws and regulations Ⅲ . Improvement of satisfaction: Personnel can check the workshift schedule, schedule workshift, change of workshift at anytime. Supervisors also save the time for statistical calculation of working hours and overtime fee, night shift fee. "