Hi

Afraid of getting flamed, but here's my point of view:

In my opinion it is the opposite way.

The web service is the boundary (the contract you expose to your
clients). You can use a Facade "behind" the Web service to wrap your
business logic layer.

So you have:
Client->Web Service->Coarse grained business facade->Fine grained
business logic

Following the above, you can have multiple web services accessing the
same business facade. Again, the fine grained business logic can be
accessed by multiple course grained business facades.

As always:
It depends... among other things on how "big" the system is in terms of
services. The above point of view *can* be overkill in some situations.

Back to your question:
You *could* place a wrapper around your web service. You will have then
have web services calling web services.

Ideal (in my opion) you wrap your business logic layer (BLL) into a set
of facades and have web services call those.

Regards

Henrik
http://websolver.blogspot.com