Chen notation to crow's foot



  • How do I illustrate relationships which has an attribute in chen notation to crows foot notation?

    Example:

    enter image description here

    There is an attribute "quantity" in the relation. How do I draw that in crow's foot notation? Thanks



  • You want an http://www2.cs.uregina.ca/%7Ebernatja/crowsfoot.html :

    Intersection entities are used in the resolution of a many to many relationship. This resolution is done in order to store additional information which doesn’t fit into the attribute list of either entity in the M:M relationship.

    See the Class entity below.

    Example of an intersection entity


    http://www2.cs.uregina.ca/%7Ebernatja/crowsfoot.html .




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