Identity and Access Component Diagram

This component diagram presents an authentication service as a set of focused software responsibilities. A client application calls the authentication API, which delegates credential checking and token issuance. Credentials are verified against a user directory. The token service evaluates policy, persists session state and records audit activity. This separation is helpful when teams need to review security boundaries and decide where to add controls such as multi-factor authentication or token revocation. The diagram is not an identity protocol sequence diagram; it shows component dependencies rather than OAuth or OpenID message exchanges. Add an external identity provider when federation is part of the real system.

種類 ブロック図規格 Ogata / standard controls textbook conventionエンジン schematex-blockdiagram更新日 2026/9/24

依頼内容

“An identity and access component diagram with a client application calling an authentication API. The API uses a credential validator and token service; the validator checks a user directory; and the token service uses a policy evaluator, session store and audit component.”

次はこちらAdd multi-factor authentication after credential validationAdd a token revocation component

この図に含まれるもの

図の背後にある意思決定を読み解く。

01Credential boundary

Separates validation from the public API.

02Token responsibility

Gives sessions and policy evaluation to the token service.

03Audit path

Records authentication activity as a separate component.

Use this view to explain the major components of an authentication and access-control service.

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よくある質問

Why separate credential validation and token issuance?

They have different responsibilities and may need different security controls or external integrations.

What is the session store for?

It retains server-side session or token state when the chosen authentication model needs it.

Why include auditing?

Authentication events are often needed for monitoring, investigation and compliance.