main fuction I. Attendance - View history of daily timekeeping - Please leave late, leave early - Please excuse me - Register to work overtime - Attendance by face - View monthly timesheets - Track employees who go to work, who are absent daily II. Salary - See payroll III. Evaluate - Self-assessment of KPI - Browse KPI (manager) - Enter the performance - Browse performance (manager) IV. Work - Assign - Performing the assigned work - Track working status - Track job status - Planning work - Repo