Unified Modeling Language
UML home page at OMG
UML dictionary by Kendall Scott
UML white papers at ITpapers.com
Action semantics
Action semantics homepage maintained by Peter D. Mosses
Object-oriented programming
Object theory course materials from University of Calgary
Object-oriented white papers at ITpapers.com
Related tools
UMLAUT (Unified Modeling Language All pUrposes Transformer)
Kennedy Carter's iUML support for executable UML modelling
Maintained by Thomas Feng, Winter 2002