UML Diagram of Composite Design Pattern. My own work generated with <a rel="nofollow" class="external text" href="http://argouml.tigris.org/">ArgoUML</a>.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Lu%C3%ADs_Felipe_Braga" title="User:Luís Felipe Braga">Luís Felipe Braga</a> assumed (based on copyright claims).
9 November 2006 (original upload date)
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