Open Source Tracker is a middleware for electronic traceability of food message, e.g TraceCoreXML. OST comes with an optional web interface used to view, generate, exchage and translate traceability messages. Both Java and .net version are available now.
A Java project producing graphs from XML Schema documents, using GraphViz (http://www.graphviz.org) as the rendering engine. Distributions include a stand-alone java executable and an ANT task.