flowchart TD LRS[("LRS
statements + logs")]:::source Agg["Streaming aggregator
or batched query"]:::agg OpMet["Operator metrics
throughput / latency / errors"]:::opmet EdMet["Educator metrics
engagement / completion / attempts"]:::edmet Graf["Grafana"]:::dash Obs["Observable Framework"]:::dash Ops(["Operators"]):::consumer Teach(["Teachers /
Instructional Designers"]):::consumer LRS --> Agg Agg --> OpMet Agg --> EdMet OpMet --> Graf EdMet --> Obs Graf --> Ops Obs --> Teach click LRS call showLayer("LRS") click Agg call showLayer("Agg") click OpMet call showLayer("OpMet") click EdMet call showLayer("EdMet") click Graf call showLayer("Graf") click Obs call showLayer("Obs") click Ops call showLayer("Ops") click Teach call showLayer("Teach") classDef source fill:#1e293b,stroke:#0f172a,color:#fff,font-weight:bold classDef agg fill:#0d9488,stroke:#134e4a,color:#fff classDef opmet fill:#dc2626,stroke:#7f1d1d,color:#fff classDef edmet fill:#4338ca,stroke:#312e81,color:#fff classDef dash fill:#ca8a04,stroke:#854d0e,color:#fff classDef consumer fill:#16a34a,stroke:#14532d,color:#fff linkStyle default stroke:#64748b,stroke-width:2px