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Statements which are an immutable record of an agent’s interaction with an activity. A set of statements can be used to track a complete learning experience. Voiding can be used to invalidate previous statements, henceforth removing them from normal retrieval methods.
Activity Profiles that record additional mutable (dynamic) information about an activity that you wouldn’t want to record on every statementfor use inside the learning activity (e.g. an expiration date). This isn't heavily used.
Agent Profiles that record additional mutable information about an agent that you wouldn’t want to record on every statement.State which records mutable information about an agent in relation to an activity, such as how far they’ve progressed through a activitya learner for use inside a learning activity (e.g. their language or accessibility preferences). This isn't heavily used.
State is for storing dynamic things specific to the learner and the learning activity (e.g. their progress through the activity). This is heavily used.
USING THE XAPI
To begin using the xAPI in Learning Locker, you can checkout our guides for integrating with Learning Locker, inserting statements, and retrieving statements. For more detailed documentation of the xAPI conformant HTTP interfaces that Learning Locker provides, you can checkout the xAPI HTTP interface documentation.