BPM in which source and target data types are different

Dear All,

I am new to BPM. I have tried a sample file to file scenario on BPM and it is successful. I have followed different blogs on SDN for this. But all these blogs uses same data type for source and target.

I want to create a BPM in which source and target data types are different.

So how I will develope this scenario? How many message interfaces will be there?

what abt mapping program and also what will be ID configuration for this?

Thanks in advance.

Warm Regards,

Gouri