Protocol & Schema

The schema defines the annotation structure for your study — which lanes exist, what labels are valid, and what rules govern annotation behaviour. It is configured once per study and shared across all sessions.

What the schema controls

• Annotation lanes — the horizontal rows on the timeline (e.g. FOG, Gait Phase, Context)
• Labels — valid label values within each lane
• Hierarchy — L1–L5 nesting relationships between lanes
• Rules — automatic side-effects and violation checks (see Rules & Violations)

Viewing the schema

View → Schema Browser opens the schema inspector.

Schema file format

{
  "lanes": [
    {
      "id": "fog",
      "label": "FOG",
      "level": 1,
      "labels": ["FOG", "Trembling-in-Place", "Akinesia"]
    }
  ],
  "rules": []
}

Creating a schema for a new study

Place the schema JSON file anywhere accessible on disk. Reference it in the Session Wizard when creating a session — RIME stores the path in session.json. The bundled GP-FOG schema (gpfog_schema.json) serves as a complete working example.

Note

Schema design decisions affect all downstream analysis. Align on label definitions with all annotators before beginning data collection.