This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Ian Robinson of ThoughtWorks presents a RESTful approach to managing workflow using event notification in a service based system. In this study event consumers pull events off Atom feeds. Ian describes how the Atom Syndication Format is used to represent a collection of links to the event(resource)s and how features of both HTTP and the Atom Publishing Protocol are used to help consumers keep their event data fresh. A caching proxy in front of the event provider Atom Feed (Atom Server) is used to foster scalability. The caching proxy itself can utilize HTTP cache channels to keep its own content fresh.