Create a UML class diagram of the models

[budang]

• Create a UML class diagram of the models using yUML.
• The diagram needs to show data members, methods, associations and multiplicity between the models.
• Quality of the UML diagram:
  • data members, methods, associations, and multiplicity

[budang]

completed by @budang, @ace-jc, and @mjvolk

[budang]

http://yuml.me/b42a40ca/