Designing Identity and Access Governance Systems: Key Architectural Considerations
This article explores the foundational ideas behind Haseen, a project aimed at simplifying identity and access governance (IAG). It delves into the architectural challenges of managing permissions, roles, and temporary access in a growing organization, emphasizing the importance of a robust data model and backend enforcement for security and reliability.
Read original on Dev.to #architectureThe article introduces Haseen, an identity and access governance (IAG) project, stemming from the real-world problem of managing user permissions in large organizations. It highlights the complexities involved in determining who has access to what, ensuring necessary permissions, and auditing access over time. The core challenge is maintaining control, visibility, and accountability of access rights, which is a critical aspect of system security and operational integrity.
Core IAG Concepts and Design Considerations
- Understanding Permissions: Designing interfaces (like permission matrices or trees) to clearly visualize relationships between employees, roles, and resources. The underlying data model must accurately represent these relationships to prevent inconsistencies.
- Managing Access Through Roles (RBAC): Utilizing role-based access control (RBAC) to abstract permissions, where employees are assigned roles that bundle specific permissions. This simplifies management but requires careful modeling of many-to-many relationships between roles and permissions.
- Temporary Access Requests: Implementing a mechanism for time-bound access to resources. A crucial architectural decision is that *backend systems must enforce expiration*, not just the frontend, to ensure security.
Frontend vs. Backend Responsibilities
A key architectural insight is the clear separation of concerns: while the frontend can display access statuses and expiration times, the backend is solely responsible for enforcing access rules and validating permissions. This prevents security vulnerabilities that could arise from client-side manipulation.
Engineering Challenges in IAG System Design
- Data Modeling: Accurately representing complex relationships between users, roles, permissions, and resources is fundamental for a reliable IAG system.
- Interface for Complex Data: Designing UIs that simplify the management of intricate data relationships, including filtering, searching, and navigation, is crucial for usability.
- Security Boundaries: Clearly defining where frontend responsibilities end and backend responsibilities begin, especially concerning authorization and access enforcement, is paramount for system security and integrity.
- Concurrency: Handling conflicting changes by multiple administrators on permissions or roles requires robust concurrency control mechanisms.
The article emphasizes that building such a system requires more than just UI components; it demands deep thought into data models, application structure, and robust backend enforcement to ensure security, maintainability, and reliability.