flowchart TB Textbooks["Intelligent Textbooks
thousands, concurrent"]:::ext subgraph LRS["Learning Record Store"] direction TB Ingestion["Ingestion Plane"]:::p1 Processing["Processing Plane"]:::p2 Storage["Storage Plane"]:::p3 Analytics["Analytics Plane"]:::p4 Presentation["Presentation Plane"]:::p5 Ingestion -->|durably queued statements| Processing Processing -->|validated + enriched events| Storage Storage -->|aggregated queries| Analytics Analytics -->|rendered reports| Presentation end Instructors["Instructors"]:::ext Admins["District & System Admins"]:::ext Textbooks -->|xAPI statements| Ingestion Presentation -->|dashboards| Instructors Presentation -->|admin UIs| Admins classDef ext fill:#9aa7b4,stroke:#5f6e82,color:#fff,font-size:15px classDef p1 fill:#0f5c53,stroke:#0a3f39,color:#fff,font-size:15px classDef p2 fill:#1a7f72,stroke:#12695f,color:#fff,font-size:15px classDef p3 fill:#2a9d8f,stroke:#1f7a6f,color:#fff,font-size:15px classDef p4 fill:#5cbcb0,stroke:#3bab9d,color:#08312c,font-size:15px classDef p5 fill:#a7ddd5,stroke:#5cbcb0,color:#08312c,font-size:15px linkStyle default stroke:#999,stroke-width:2px