composition mark on association

[balint]

Hi,

As far as I see in EA the composition mark on association (an empty diamond) is on the part (or detail or destination) side of the association.
I think the right way for it is to be on the whole (or master or source) side or at least this should be configurable.
The same goes to aggregation.

Am I missed a setting option or what?

Regards,
Balint

[thomaskilian]

See here: http://www.sparxsystems.com.au/cgi-bin/yabb/YaBB.cgi?board=general;action=display;num=1078757256

[KP]

Just to clarify: the whole is the target; the part is the source. The composition symbol is an (odd-shaped) arrowhead so it goes at the target end.

[Jacques_Ronaldi]

Indeed, I was surprised too. Other tools seemed much more intuitive! Every single person I've shown it to thought EA had a bug.

Should EA change? I think not. It is clear in the UML spec after all, so we should get used to it. BUT it is so unexpected by so many people that maybe the documentation should be clear about it...

In any case, it's nice when fellow designers first report this "bug" (they all do) : you can point them to the UML definition and acquire instant "guru" status ;-).