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Composite association has multiplicity labels on wrong (?) sides [message #1848649]

Sun, 12 December 2021 11:28

Denis Kajdic

Messages: 5
Registered: August 2021

Junior Member

Papyrus 5.2.0

When I create a composite association between class A and class B, the labels are shown as on the attached screenshot.

I would expect them to be on the opposite sides and actually, I'm about to extend an existing model which does show the labels that way (the second screenshot, if we assume the class names are again class A and class B).

I couldn't find any place to switch the sides but I suppose there should be an option to change this?

index.php/fa/41440/0/

Attachment: 01--example--ClassA-ClassB.jpg
(Size: 44.08KB, Downloaded 272 times)
Attachment: 02--example--ClassA-ClassB--correctly-labeled.jpg
(Size: 51.67KB, Downloaded 282 times)

[Updated on: Sun, 12 December 2021 12:06]

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Re: Composite association has multiplicity labels on wrong (?) sides [message #1848651 is a reply to message #1848649]

Sun, 12 December 2021 13:42

Carsten Pitz

Messages: 479
Registered: May 2015
Location: Germany

Senior Member

Hi Denis,
according to the UML 2.5.1 specification (https://www.omg.org/spec/UML) the left side diagram is correct. Take a look at the abstract syntax diagrams to find examples.
/Carsten

[Updated on: Sun, 12 December 2021 18:45]

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Re: Composite association has multiplicity labels on wrong (?) sides [message #1848653 is a reply to message #1848651]

Sun, 12 December 2021 16:54

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

There absolutely should not be an option to swap sides. The visible representation is well-defined and sensible,.

Your right hand screen shot is perverse but not wrong, you've just labelled the wrong ends. I suspect that you have got confused by the complexity of the association end properties. I'm pretty sure I've got them wrong more than once. Once you figure it out, you might care to raise a Bugzilla against the UI ergonomics.

Regards

Ed Willink

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