BPM vs SOA

Hi,

With this article I would like to open a very hot discussion which always end without any particular decision i.e BPM vs SOA.

The best statement I ever read is that "BPM and SOA are the two faces of the coin, they are both complimentary to each other, if not we are not getting the best of both".

Some says that BPM is a part of SOA and some other way round. I think its very tough to draw a line between these two, but still can't differentiate these on a conceptual level?

Would we intersted to know your thoughts.

Cheers

Parveen