The large commercial buildings looking to organize the internal order cutting down the employee bad, asset and sensitive information threats must manage access control. Asking about whether traditional lock-and-key systems are efficient should not arise as they are no longer scalable tips for such a complex environment. With the modern technology, electronic door locks do little allow maximum safety and control of the access times. Electronic door locks have revolutionized the access control mechanisms in large commercial buildings as discussed in this article with special emphasis on the key selling points, the manufacturing process and the practical areas of application.