Difference between HR Auth Objects.

Hello,

Just curious -

I am not sure how these HR Auth Objects are related.

Can someone please explain ?

P_ORGIN

PLOD

P_ORGINCON

P_PERNO

I have been looking for HR Security information all over and was not able

to find any class or good Documentation ?

I am looking for some SAP Security Guide for HR ?

Is there any class that SAP offers to learn HR Security ?

Can someone please guide me here ?

Thanks,

From,

PT.