Certified Information Systems Security Professional (CISSP) Practice Exam 2025 – All-in-One Guide to Mastering Your Certification!

The Graham-Denning Model primarily focuses on the interactions between subjects (active entities, such as users or processes) and objects (passive entities, like files or databases) within a system, providing a granular approach to access control. It outlines specific rules for how subjects can create, delete, and grant access to objects, emphasizing the importance of defining the relationships and permissions that govern these interactions.

This model distinguishes itself by detailing different capabilities and the protection mechanisms that govern how subjects can interact with objects. By doing so, it ensures that security policies are not only enforced at a high level but also allow for a meticulous examination of individual interactions and access rights, addressing potential security issues on a case-by-case basis. This granularity is crucial in complex systems, where there may be many users with varying levels of access and different types of objects needing protection.

While the Graham-Denning Model does have implications for broader security policies, its primary strength lies in its detailed treatment of access control mechanisms, which helps practitioners design systems that minimize security risks through carefully controlled interactions between subjects and objects. This makes the approach particularly beneficial for environments that require well-defined roles and responsibilities.