the role associated with an event, e.g., for what was an artifact used? the time at which the agent began controlling the process the artifact that was used the artifact from which the derived artifact was derived the time at which the artifact was used the time at which the process was triggered the process that the agent controlled the role the generated artifact serves with respect to the process an association between an event and an account the process that triggered the process the artifact that was derived the role the artifact played as input into the process an association between an event and an artifact the process that used the artifact the time at which the artifact was derived the time at which the agent ceased controlling the process the process that generated the artifact the process that was triggered the agent that controlled the process an association between an event and a process the time at which the artifact was generated the role the agent played in controlling the process the artifact that was generated a piece of timing information associated with an event the event occurred no later than this time a name given to this OPM entity the event occurred no earlier than this time