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Systems Analysis and Design (Shell...

11th Edition
Scott Tilley + 1 other
ISBN: 9781305494602

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BuyFindarrow_forward

Systems Analysis and Design (Shell...

11th Edition
Scott Tilley + 1 other
ISBN: 9781305494602
Textbook Problem

What is cardinality, and what symbols do you use in the crow’s foot notation method?

Program Plan Intro

Define cardinality and describe the symbols used in crow’s foot notation method for representing cardinality.

Program Explanation

Cardinality of a relationship defines the number of instances which can be related to other entity type. There are three types of cardinalities: One and only one, one or many, zero or many, and zero or one.

Crows foot notation provides symbols to represent each of these cardinalities. Below table shows how these cardinalities can be represented using crows’ notations:

Crow’s foot notation Cardinality

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