What is "child processes" if using OS Fetchlet with "em_metric_timeout"?

On page 330 of document <Oracle® Enterprise Manager Extensibility Guide 10g Release 5 (10.2.0.5) B40007-02>, there are a description of using "em_metric_timeout" with OS Fetchlet as below,
Parameter : em_metric_timeout
Type : integer
Description :
Metric timeout period (in seconds). After the timeout period has finished, the Management Agent returns a timeout >exception and terminates any child processes that may have been created. The Management Agent DOES NOT kill >any of the grandchild processes. Specify "-1" for no timout period.
Use : OptionalWhat does "child processes" mean here?
Any help will be appreaciated!!!
Thanks,
Satine

I would assume it means the process created to run your script to collect the data, but if you create any processes in that script (grandchild processes) the agent won't get those.

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