** General
- UML is a language that unifies the industries best practices for modelling systems.
- Modeling involves a focus on understanding a system, and capturing and being able to communicate this knowledge !


** Terminoloy
- Realization is a relationship between classes, interfaces, components, and packages that connects a client element with a supplier element.  A realization relationship between classes and interfaces and between components and interfaces shows that the class realizes the operations offered by the interface.


** Diagrams:
- Sequence diagram puts emphasis on sequence of events; It is easy to see the order in which things occur.
- Collbaboration diagram focuses on relationship between objects and it indicates how objects are statically connected.


** Books
- UML Distilled; Martin Fowler with Kendal Scott

** Links:
http://www.advancedsw.com/uml_central.html