UML, Use-cases, Data modeling etc..

http://umlcenter.visual-paradigm.com/

 

Toad Data Modeler v3.3.7.22 (upgraded to this version 090223)

 

Toad Data Modeler Tutorials: 

http://modeling.inside.quest.com/kbcategory.jspa?categoryID=158&resultOffset=0&sortField=103&sortOrder=1&filterEntryTypeID=-1