how to show partial key in uml er diagram

Posted by Infestor on Stack Overflow See other posts from Stack Overflow or by Infestor
Published on 2010-05-31T06:26:42Z Indexed on 2010/05/31 6:32 UTC
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in chen's notation partial keys were shown as dashed lines, how are they shown in uml er (entity-relationship) diagram?

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