1.Rose:powerful enough,but too complex,and is a commercial tool;
2.ArgoUML:a famous Open Source Engeering Project,but,it's too hard to use for me;
3.Poseidon Community V3.0,a commercial implemention of ArgoUML,stable and beautiful face,but is running slowly;
3.JUDE:A easy to use UML tool,it's community version has not any restriction.It can export javadoc,html,etc;
4.EclipseUML Plugin:a community version of it own the full function of JUDE,and is integrated with Eclipse very well.
the initial mind of mine is to use EclipseUML Plugin.
Until today,I only draw some diagram of 'sharefiles' module.the thing that I told to J_Key that I can do it need more time to do.The time in Spring Festival always are the busy days for adult but not for child,I am recollectting my happy childhood days.