If your daily work includes SOA and enterprise integration then you surely know about the famous book by Gregor Hohpe "Enterprise Integration Patterns" a modern classic on the matter that is plenty of beautiful symbols representing several concepts such as messages, channels, endpoints, queues etc. I bet you have been struggling with the fact that neither Visio nor other famous diagramming tools doesn´t include these symbols on their palettes, sure you can search a non official resource, but believe that it won´t be easy to set up, and probably won't work as expected. But there is a simple alternative, just use yEd , a free graph editor by yWorks, a nice and very productive diagramming tool, give it chance. But, yEd, being very nice itself, doesn´t include a EIP symbols palette, fortunately it's easy to solve this issue. Just download the icons file and decompress it wherever you want, now open yEd , go to the palette, right click and create a "new section&