Other
Uml Home Page
The OMG specification for UML is considered the industry standard. This site contains the current UML specification, UML tools, tutorials and reference materials.
Other
Practical Uml: A Hands on Introduction for Developers
A tutorial that provides a quick introduction into the use of UML.
Khan Academy
Khan Academy: Teaching Guide: Intro to Js Object Oriented Design
A teaching guide for the Intro to JS lesson on Object-oriented design.
Wikimedia
Wikipedia: Object Oriented Design
A Wikipedia description of the Object Oriented approach to the design of software systems.
Wikimedia
Wikipedia: Unified Modeling Language (Uml)
A Wikipedia description of the Unified Modeling Language (UML) specification.