UML Activity Diagrams can be used to express workflows. The chapter of the UML specification at http://cgi.omg.org/docs/formal/01-09-74.pdf, section 3.84, describes how to draw activity diagrams. Most sources agree that activity diagrams are sufficient to model workflows, especially when used in conjunction with other UML diagrams, particularly State Diagrams.
I have published some very basic information and examples on using UML for metadata/taxonomy/ontology modeling at: http://www.dynamicdigitalmedia.com/uml_modeling.html There are only two examples on the page, but there will be more information in conjunction with the Visio plug-in release that I mentioned in my prior post. I would appreciate any and all feedback. Please send to me directly. Regards, Jason Kinner Dynamic Digital Media, LLC http://www.dynamicdigitalmedia.com -- http://cms-list.org/ more signal, less noise.
