Do you plan to take screenshots of your visio diagrams ? I am asking because only HTML and image files embedded in HTML are allowed in your JAR. I dont think the examiner would think it kindly if you were to attach visio files.
I somehow have an aversion to visio. I hear visio 2007 is better but I prefer other tools to draw my diagrams.
use netbeans. it's packed with component validations and changes you apply in a component in one diagram will be reflected on the other diagrams if you created a project.