Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] UML (Unified Modeling Language) business process modeling common uses designing software 2nd extending rules of thumb 2nd specifications 2nd 3rd 4th UML Infrastructure 2nd UML Superstructure 2nd underscore (_) union property (attributes) unique property uniqueness property 2nd attributes use case diagrams actors and advanced modeling components defined interfaces and SPEM and use case scope use case view and use cases and 2nd use case extension 2nd use case generalization use case inclusion use case packages use case view use cases advanced modeling generalization overview 2nd representation scope use case diagrams and |