wip

figures/xapi-schema.mmd

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+flowchart TB
+  subgraph S["xAPI Statement"]
+    A["Actor<br/>(Agent/Group)"]
+    V["Verb<br/>(URI + display)"]
+    O["Object<br/>(Activity/Agent/StatementRef)"]
+    R["Result<br/>(success, score, duration, response*)"]
+    C["Context<br/>(activity context, group, platform, instructor*, contextActivities, registration, extensions)"]
+    T["Timestamp<br/>(event time)"]
+    X["Extensions<br/>(custom fields in allowed locations)"]
+  end
+
+  A --> V --> O
+  O --> R
+  O --> C
+  O --> T
+  R -. "optional" .-> X
+  C -. "optional" .-> X