? Oracle TDP needs RMAN??

[MC Matt Cooper (2838)]

Hello all,
        I am working with a some Oracle people to define a backup solution.
I suggested using the Oracle TDP for doing HOT backups.  They said that the
TDP does nothing for them because they  do NOT use RMAN.  They write their
own scripts to freeze/release the table spaces and do backups.  Does this
sound correct?  Oracle TDP works directly with RMAN?
Thanks
Matt