Hi, I've had a few emails asking what UML (Unified Modelling Language) is and how it works... Here's a link to a useful UML tutorial: http://www.sparxsystems.com.au/UML_Tutorial.htm Or here's a search on google 8) http://www.google.com.au/search?q=UML+tutorial&ie;=ISO-8859-1&hl;=en&meta;= I'm sure this will help people understand how useful these modelling tools can be for the NLP community...and how much existing work there is that we can build upon... Talk to you soon... roBman