Difference: 'uses', 'extends', 'includes'

Answer Posted / clark

Includes:

if(TRUE)

include the use case

Extends:

if(condition)

extend the use case

It's a matter of unconditional VS. conditional insertion

(Source : Uml 2002--The Unified Modeling Language
By Jean-Marc Jézéquel, Heinrich Hussmann, Stephen Cook)

Uses:

Defined in UML 1.1

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