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Class cardinality on class diagram [message #724487]

Mon, 12 September 2011 09:12

Eclipse User

Hi,

Anyone knows if is it possible to set class cardinality on a standard UML2Tools class diagram?

Thanks in advance,
David.

[Updated on: Mon, 12 September 2011 09:12] by Moderator

Re: Class cardinality on class diagram [message #724546 is a reply to message #724487]

Mon, 12 September 2011 11:06

Eclipse User

David,

I'm not sure what that is, but if there isn't a way to do it in the
diagram, there's most likely a way in the properties view.

On 12/09/2011 6:12 AM, davidsanchez00 wrote:
> Hi,
>
> Anyone knows if it is possible to set class cardinality on a standard
> UML2Tools class diagram?
>
> Thanks in advance,
> David.

Re: Class cardinality on class diagram [message #724552 is a reply to message #724546]

Mon, 12 September 2011 11:21

Eclipse User

Hi Ed,

Class cardinality has to do with the maximum number of instances of one class that can exist on the system.
I have already checked the class properties and can't find anything that has to do with class cardinality.

Kind regards,
David.

Re: Class cardinality on class diagram [message #724586 is a reply to message #724552]

Mon, 12 September 2011 11:39

Eclipse User

David,

Is this part of the UML specification? Can you see it in the UML2 API?

On 12/09/2011 8:21 AM, davidsanchez00 wrote:
> Hi Ed,
>
> Class cardinality has to do with the maximum number of instances of
> one class that can exist on the system.
> I have already checked the class properties and can't find anything
> that has to do with class cardinality.
>
> Kind regards,
> David.

Re: Class cardinality on class diagram [message #725147 is a reply to message #724586]

Wed, 14 September 2011 01:20

Eclipse User

Hi

I can't see anything in the UML specification. It seems to be a rather
suspect concept. Cardinality only exists in the context of
MultiplicityElement and Profile Extension.

I think that your problem is that you treat your system as the global
universe rather than modeling it. As soon as you create a System class
you can then define that the A_system_class association has a bounded
multiplicity.

[It is amazing how often modeling the System rather than using
unconcontrolled globals enables you top do more; like have two systems
in a simulation, or tre-use the 'system' as a sub-component in a
simulation of the super-system or in a test harness.]

Regards

Ed Willink

On 12/09/2011 16:39, Ed Merks wrote:
> David,
>
> Is this part of the UML specification? Can you see it in the UML2 API?
>
>
> On 12/09/2011 8:21 AM, davidsanchez00 wrote:
>> Hi Ed,
>>
>> Class cardinality has to do with the maximum number of instances of
>> one class that can exist on the system.
>> I have already checked the class properties and can't find anything
>> that has to do with class cardinality.
>>
>> Kind regards,
>> David.

Re: Class cardinality on class diagram [message #726678 is a reply to message #724487]

Mon, 19 September 2011 04:35

Eclipse User

Hi,
you can set it with a "[3..*]" String after the memberend name of the
association.
Peter

Am Mo 12.09.11 15:12, schrieb davidsanchez00:
> Hi,
>
> Anyone knows if it is possible to set class cardinality on a standard
> UML2Tools class diagram?
>
> Thanks in advance,
> David.

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