Library for job descriptions

What is the recommended location of user created job descriptions on the iSeries? Is there a nifty link or white paper on this kind of thing?
The system default is to place it in the current library of the job creating the job description. I normally place them in QUSRSYS, as this is normally in the system portion of the library list and all users have at least *USE authority to the library. I am not aware of any white papers or IBM Published standards on this subject.

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