Reply To: RE: ERD diagram

There are multiple notations of ERD with many modifications. Software Ideas Modeler uses basic Crow's Foot Notation.

Optional participation is expressed using 0..1 or 0..n relations. You can insert such relation directly from toolbox or change the multiplicity from Item Properties dialog (context menu/Properties -> Relationship tab -> Start multiplicity or End multiplicity)

Dusan Rodina - 26 October 2011 7:13:41

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