Workflow as as Service. WaaS? Well, why not?
WaaS is basically what Amazon has just released with their Amazon Simple Workflow (SWF) . From the blog post This new service gives you the ability to build and run distributed, fault-tolerant applications that span multiple systems (cloud-based, on-premise, or both). Amazon Simple Workflow coordinates the flow of synchronous or asynchronous tasks (logical application steps) so that you can focus on your business and your application instead of having to worry about the infrastructure Picture a business process which consists of a bunch of individual tasks that need to be done in some specific sequence based on various inputs. e.g., When an order comes in , check to see if we have inventory. If we do, fill the order. If we don't, put the order in the "back-ordered" pile. Each of these tasks is called an Action . A given Action is performed by a Worker . The whole business process is called a Workflow . And the thingy doing all the d...