What is the programming model?
A Windows Azure program is a scalable, multi-tiered web service. The service consists of one or more “web roles,” which are standard web service processes, and “worker roles,” which are computational and data management processes. Roles communicate by passing messages through queues or sockets. The number of instances of each type of role is determined by the developer when the application is deployed and each role is assigned by Windows Azure to a unique Windows Server virtual machine (VM) instance.
