LMT goes with RMAN?

My backup method is currently hot backup.
I would be installing RMAN later pretty soon.
A friend and I were having a discussion yesterday
and he told me that if I'm using
locally Managed Tablespace, my back up method
has to be definately RMAN.

I have done some research but did find any docs
relating to this issue.

IS that true, If so why?

Why? Your friend should know that ... :-)).
There's no special issue with LMT, you can use hot backups despite of type of tablespace.

LMT and RMAN

-equivalent to-

APPLES and ORANGES

;)