Trying failed activities again

If a child activity fails, you can try it again. The parent issues a CHECK ACTIVITY command, if it has not already done so, to check the current completion status of the child activity.

1. Issue a RESET ACTIVITY command.
   The child activity is reset to its initial state: its completion event is added to the event pool of the parent, with the status set to NOTFIRED; any children of the child activity are deleted. The data-containers of the child activity are not disturbed.
2. Issue a RUN ACTIVITY command.
   The child activity is invoked with a DFHINITIAL event.