File talk:AggregationAndComposition.svg
Plural class name
I think the class "Ducks" in this image should be renamed to "Duck", as class names are usually singular nouns, plus it would be consistent with the rest of the diagram. In Object_composition#UML Notation, the code example below the image uses the singular as well. Wikipedia didn't let me overwrite the image, either because I only registered recently or I'm doing something wrong. Would someone else please make the change instead? En-Cu-Kou (talk) 12:50, 20 February 2008 (UTC)
PNG preview
Right now, the PNG preview looks horrible, although the SVG source seems to be fine. Maybe a re-upload would help? I still don't have the necessary privileges for it. En-Cu-Kou (talk) 15:48, 30 November 2008 (UTC)
Composition
The cardinality is wrong on the diagram. You have a life dependency between car and carburetor which means that any carburetor must have a car, therefore if you remove the car you also should remove the carburetor. Thus it can't be 0..1 but 1..1, 1..0, etc. If you wanna have a carburetor without car, then use an aggregation.--Charrua85 (talk) 22:54, 10 August 2009 (UTC)
While I initially agreed with the above user, http://msdn.microsoft.com/en-us/library/aa475230.aspx also says that a multiplicity of 0..1 is allowed with composite relationships. I think it's stupid, but it appears that's how it is :-\
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