Django Activity Stream is a way of creating activities generated by the actions on your site. Action events are categorized by four main components.

• Actor. The object that performed the activity.
• Verb. The verb phrase that identifies the action of the activity.
• Action Object. (Optional) The object linked to the action itself.
• Target. (Optional) The object to which the activity was performed.

Actor, Action Object and Target are GenericForeignKeys to any arbitrary Django object. An action is a description of an action that was performed (Verb) at some instant in time by some Actor on some optional Target that results in an Action Object getting created/updated/deleted.

For example: justquick (actor) closed (verb) issue 2 (object) on activity-stream (target) 12 hours ago

Nomenclature of this specification is based on the Activity Streams Spec: http://activitystrea.ms/specs/atom/1.0/

For complete documenation see Django Activity Stream Documentation