Naming Convention

Dear All, 

I would like to ask about the naming convention in oracle application 

Shall I define all my setup name like XXX_(Client)_Name 

I mean when I define the key flex structure I have to define the name like XXX_PRO_Job_Flex 

or I can define it  as  PRO_Job_Flex 

Also for value sets and new menus and responsibilities.

Please Advice