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Profile: dannodj

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User Name:	dannodj
Forum Rank:	Newbie
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Location	london
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Joined:	Tuesday, August 4, 2009
Last Visit:	Tuesday, August 4, 2009 12:53:34 PM
Number of Posts:	1 [0.01% of all post / 0.00 posts per day]

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Topic: XOR association? Posted: Tuesday, August 4, 2009 12:52:46 PM
Hi, we had the same issue, but when we investigated, it is actually a feature of UML, rather than a problem with the tool. The 'XOR' type association where you effectively place an arc over the relationships which the XOR applies to, can only be created in UML by using notes, or alternatively by placing constraints on the relationships i.e. a tag with {XOR} against the end of each relationship. This is much easier when you use ER moedling, as the notation provides you with an 'exclusive arc' which can be applied to the applicable relationships. I hope this helps. Dan

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