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Why we need an Entry And Exit Door Access Control System? As more and more security threats are arising every day in peoples life, Door security Access control systems are becoming a vital part of physical security systems in modern world. It has become mandatory to monitor, record ,and restrict who is going in and who is going out through the entries and exits of offices , buildings and business premises and also who is accessing each doors of a building.

Developments in Access Control Systems In olden days, Entrances and doors of all buildings and crowded places were monitored only with security persons sitting in the entry and exit doors of each premise .This traditional way has got a lot of disadvantages and security threats. Marking and recording of in and out were done through manual registration process with visitor registration sheets. Such manual visitor's data keeping system of visitors takes a lot of time, and ends up with lots of security errors.

Then people started using technology to manage these entries and exits of visitors, guests and employees in an office or a building. This has been done with a proper visitor or door access monitoring software and hardware. Briefly adoption of RFID card identification system changed the world of access management systems a lot.

Many People started using such smart card registration for managing people's entries and exits to a premise. This has made door security access system more automated. Most popular among them were smart card readers like RFID card readers, Mifare card readers, proximity card readers with smart cards.