Organisations must implement these necessary security measures to insure that access to data, groups and applications are right for an employee during their tenure. Equally critical is the revocation of all account access when they depart. An Biometric Access Control Systems are becoming increasingly popular as the tools of choice for such applications, as prices come down, functionality and features improve, and as biometrics become inherently mobile and can deliver benefits beyond access control, such as time-and-attendance tracking, inventory management and logical access to other applications.