Relationship-Based Access Control (ReBAC) is an authorization model that assigns permissions based on the relationships between entities, such as users, teams, or resources, allowing for fine-grained access control in organizations. Unlike Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC), ReBAC offers a balance between flexibility and ease of implementation by visualizing entities and their relationships as a graph, with nodes representing resources or users and edges symbolizing relationships. This model is beneficial for capturing real-world interactions, avoiding role sprawl associated with RBAC, and enabling fine-grained access control by considering multiple conditions. However, implementing ReBAC requires careful planning and can demand substantial computing resources, as it lacks the dynamic attribute-based permissions of ABAC. Platforms like Descope facilitate ReBAC implementation through tools that allow developers to incorporate authentication, authorization, and identity management into applications using low-code solutions.