Coarse-grained access control grants or denies access based on a single or small number of factors. It typically involves assigning permissions to broad roles or entire user groups. Imagine a library where only two types of membership exist: "Student" and "Staff." Students may have access to all study materials, while staff members have access to both study materials and administrative sections. This simple, but broad method of controlling access privileges without distinguishing between individual resources or specific needs, is likely to follow a Role-Based Access Control (RBAC) approach.