What you will learn
SSO concepts, RBAC and attributes, Service identities, Secrets, Auditability.
Engineering the capability
A user signing in is only the beginning of authorization. Map the authenticated identity to the customer’s roles, groups, and resource permissions. Apply those constraints to reads, retrieval, writes, caches, and background tasks. Keep human user identity distinct from the service account used to reach a downstream API.
A broad service credential must not become broad end-user authority. Enforce delegated permissions in the application and prefer narrowly scoped credentials where supported. Secret rotation and revocation need an operational procedure, including how running jobs respond when access changes.
Document deployment boundaries such as private networks, outbound access, and data residency requirements as constraints to validate with the customer. An architectural assumption about connectivity should be tested early with a minimal request rather than discovered after the full application is built.
Worked case
A service account can read every ticket, but a support agent may read only its assigned queue. Passing the service credential to a model-controlled query bypasses that distinction. The adapter must apply the authenticated user’s queue restrictions before returning records, even though the downstream credential is more powerful.
Put it into practice
Continue with the next lab: exercise an enterprise access matrix. Build the artifact, record the failure cases, and explain the tradeoff before moving on.