About This Architecture

C4 Context and Component diagram modeling an External Service integrating a New Service UI through embedded components and SSO authentication. End Users access the Admin UI, which delegates authentication to an Identity Provider via SSO, then routes to a Single Page Application frontend that communicates with a Backend API and Persistent Storage. The New Service UI is embedded within the External Service UI boundary, demonstrating a federated architecture pattern with clear separation of concerns and synchronous/asynchronous integration points. This diagram illustrates best practices for multi-service systems requiring unified authentication and seamless UI composition. Fork and customize this template on Diagrams.so to model your own service boundaries, authentication flows, and component interactions.

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How do you design a C4 architecture diagram for integrating a new service UI into an existing external service with SSO authentication?

This C4 Context and Component diagram shows how to structure service boundaries, embed a New Service UI within an External Service, and route authentication through an Identity Provider via SSO. The Backend API and Database represent persistent storage, while synchronous and asynchronous relationships clarify integration points between components.