Are they dependent on each other????????
They don't have to be dependent on each other. I guess some folks have misunderstanding on this.
Both SOA and BPM are the current trends but they are two different concepts.
Some BPMs use SOA and some are not. There is no hard and fast rules to use SOA in BPM.
But it will be best practice to use SOA in BPM.
SOA is service oriented whereas BPM is process oriented. By using SOA in BPM, a service oriented process can be created which gives the flexibility for process integration.
By introducing both in your application, it will be more loosely coupled.
