International Journal of Computer Applications
Access control is the process or mechanism for giving the authority to access the specific resources, applications and system. Access control defines a set of conditions or criteria to access the system and its resources. There are three main accesses control model first is mandatory access control model, second is discretionary access control model and third is role based access control models. In mandatory access control models, the user's roles are allotted according to the system administrator wishes. In this, end users do not have authority to set any access control policies on files therefore it is the most restrictive access control method. It is useful in a highly secured environment.