http://v900u039rux.maximumasp.com/Web/blogs/hb0/archive/2007/10/07/uml-style-free-modeling-tools-for-visual-studio-net.aspx"tangible FREE modeling tools" which support UML-style modeling diretly in Visual Studio.NET. tangible free modeling tools enable the .NET community to communicate better in .NET projects without costs. tangible modelling tools FREE EDITIONenCommunityServer 2007 SP2 (Build: 20611.960)