org.eclipse.ui.activities
Interfaces 
IActivity
IActivityListener
IActivityManager
IActivityManagerListener
IActivityPatternBinding
IActivityRequirementBinding
ICategory
ICategoryActivityBinding
ICategoryListener
IIdentifier
IIdentifierListener
IMutableActivityManager
ITriggerPoint
ITriggerPointAdvisor
ITriggerPointManager
IWorkbenchActivitySupport
Classes 
ActivitiesPreferencePage
ActivityCategoryPreferencePage
ActivityEvent
ActivityManagerEvent
CategoryEvent
IdentifierEvent
WorkbenchActivityHelper
WorkbenchTriggerPointAdvisor
Exceptions 
NotDefinedException