The Crow's Foot model is less implementation-oriented than the Chen model.
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Q5: In the Chen model,a multivalued attribute is
Q7: The ER model refers to a specific
Q8: The ER diagram represents the conceptual database
Q9: In an ER diagram,primary keys are usually
Q11: In both the Chen and Crow's Foot
Q12: Ideally,a primary key is composed of several
Q13: The ER model refers to a specific
Q14: Attributes cannot share a domain.
Q15: Attributes have a domain that specifies the
Q19: Software vendors have adopted the Chen representation
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