| Name | Description | Type | Package | Framework |
| Activity | An activity is an occurrence of some active action. | Class | org.apache.oodt.commons.activity | Apache OODT |
| ActivityException | This class is intended to be thrown as an exception in the org. | Class | org.apache.oodt.commons.activity | Apache OODT |
| ActivityFactory | Factory for activities. | Interface | org.apache.oodt.commons.activity | Apache OODT |
| ActivityTracker | Tracker of activities. | Class | org.apache.oodt.commons.activity | Apache OODT |
| CompositeActivity | A composite activity multiplexes incidents to multiple other activities. | Class | org.apache.oodt.commons.activity | Apache OODT |
| DatagramLoggingActivityFactory | This activity factory produces activities that log their incidents using datagrams. | Class | org.apache.oodt.commons.activity | Apache OODT |
| Incident | An incident signifies some occurrence within an activity. | Class | org.apache.oodt.commons.activity | Apache OODT |
| NullActivity | A null activity doesn't record any incidents. | Class | org.apache.oodt.commons.activity | Apache OODT |
| Retrieval | Retrieval is a vehicle for getting activities and their associated incidents from Storage. | Interface | org.apache.oodt.commons.activity | Apache OODT |
| SQLDatabaseRetrieval | This class enables retrieval of activity incidents from just about any database management system. | Class | org.apache.oodt.commons.activity | Apache OODT |
| SQLDatabaseStorage | This class enables storage of activity incidents in just about any database management system. | Class | org.apache.oodt.commons.activity | Apache OODT |
| StandardOutputStorage | Storage that sends activity reports to the standard output as plain text. | Class | org.apache.oodt.commons.activity | Apache OODT |
| Storage | A Storage is a place to store for the long term record an activity and the incidentsVersion:$Revision: 1. | Interface | org.apache.oodt.commons.activity | Apache OODT |
| StoredActivity | This class holds an activity retrieved from storage. | Class | org.apache.oodt.commons.activity | Apache OODT |
| StoredIncident | This class holds an incident retrieved from storage. | Class | org.apache.oodt.commons.activity | Apache OODT |
| WriterStorage | Storage that sends activity reports to a Writer as plain text. | Class | org.apache.oodt.commons.activity | Apache OODT |
| XMLStandardOutputStorage | Simple storage that writes XML documents describing activities to the standard output. | Class | org.apache.oodt.commons.activity | Apache OODT |
| XMLStorage | Storage that saves activities as XML documents. | Class | org.apache.oodt.commons.activity | Apache OODT |