A Tricky Designation Based Query

Seniors, pls clarrify,,,,a tricky designation based query.....
I need to know about difference on designation of "HR Assistant Manager" And " Assistant Manager - HR".
Please clarify... Are both same???? Why some people say "Assistant Manager- HR" and some say "HR Assistant Manager".

Dear Sivan,
While appreciating the inquistiveness behind your query, I am quite unable to find any 'trick' underlying such nomenclature. We can see General Managers-HR simply called as 'Head-HR' in some organizations. However, my musing over this aspect suggests to me the following which may be right or wrong, I am not sure about:
'Designation' is an official title or name assigned to a job-position. It has got two specific ingredients indicating the status of the job in the organizational hierarchy and its particular activity in the organization.