Software for designing client-server interaction?

Question

Programming

Is there software for easy client-server interaction design?
What I want to see:
1) design - a description of all entities and the construction of class diagrams, and so on.
2) generation of interfaces / templates
3) something ready for client-server interaction (ready-made protocol, etc.)

Answer 1

www.visual-paradigm.com
Such an approach for a very harsh enterprise, why burden yourself so much?