Jim,

Glad you brought up this issue of statefulness. Rick Strahl has an article on this on his Web Site. However, I need to take a look at some more detailed white papers. Do you know of any?

At first glance, stateless objects look like a real PIA to implement.

>No I haven't dome much with MTS at all. Yes the design would need to change for MTS because the business object's in the design in that paper are stateful and that won't fly well in MTS. That design would also have to change on a web server implementation even if MTS was not being used because of the statefulness of the business objects. The design approach works ok with desktop based applications though.