Detailed infomation about asynchronous tasks

Hi,

I'm making a research on asynchronous tasks, especially, parameters of them.

After reading RTC source code, plugin.xml and this site,

https://jazz.net/wiki/bin/view/Main/AsynchronousTasks

I found "fixedDelay", "runAsUser", "expiredTime", however, are those all ?

I'd like to know more details on AsynchronousTasks more than this site.
(materials, tutorials, and others, anything are OK)

Thanks,

Ken