Making WCF RIA Services work in a DMZ/Multitier architecture using Application Request Routing

IntroductionIn large companies / governments / ... most of the time the application architecture needs to follow a set of rules (focused on maintainability and security).These could be rules like the following: The applications need to be developed following a Multitier architectureEach tier should be physically separated for security.The business logic tier is the only one that can connect to