Instruct: Classify an Amazon review as either positive or negative.
Query: Better choices available

If you want to learn modeling in teh IT/IS industry, you would be better served by going to another source. Rational is the "King" of UML modeling and their products are much better than this.Further, if you want support for more database platforms than only DB2, Oracle, or MS SQL then you will want to use a different tool. Try learning data modeling using tools from Computer Associates or Embarcadero before going anywhere near this horribly over-rated software.