Personnel to manage affairs must first manage their time; for this purpose, the time interval limit is defined at the workplace.
Since all the offices and factories personnel are working systemically and interdependently, all personnel must be present at the same time. this will only be accomplished if the people are at the required time at their place of duty.
In this case Entry and exit control and management systems are used to send the List of attendees and absenteeism to the managers in order to control personnels.