What is ReBAC?

ReBAC (Relationship-Based Access Control) is an authorization model that defines access permissions based on the relationships between users and resources. Instead of assigning permissions directly to users or roles, ReBAC focuses on defining relationships (e.g., "user is a member of project", "user owns document") and then granting access based on these relationships. This allows for more fine-grained and dynamic access control compared to traditional models like RBAC (Role-Based Access Control). It is commonly used in scenarios where relationships are central to defining access, such as social networks, document management systems, and collaborative platforms.