xAPI Specification Knowledge Base

Provide comprehensive guidance on xAPI (Experience API) specification for educational assessment and learning analytics.

Core Concepts

Statement Structure

An xAPI Statement follows the "Actor-Verb-Object" pattern with optional Result and Context:

{
  "actor": { },      // Who performed the action
  "verb": { },       // What action was performed
  "object": { },     // What was acted upon
  "result": { },     // Outcome of the action (optional)
  "context": { },    // Additional context (optional)
  "timestamp": "",   // When the action occurred
  "id": ""           // Unique statement identifier (UUID)