Authorization is the academic concept examining the processes by which entities are granted, validated, or restricted access, rights, or power within a defined system or context. As a research topic, it investigates the mechanisms, policies, and dynamics of permission granting, privilege assignment, and control enforcement. Key characteristics include the definition of subjects, objects, permissions, and the rules or policies governing these relationships. Its significance lies in establishing security, order, fairness, and the legitimate distribution of capabilities and resources across various domains.