The relationship between Class (Relationship) is the relationship between Class work together can be classified as follows:-Dependence relationship (Dependency), such as "Class" with "Customer Class, sales of goods" is said to be the "Class" depends on "sale of goods" customer, Customer Class, because order is changed.Or order entry, sales, it will need to be changed (Update) by the customer.-Inheritance relationship property (Inheritance), such as "mother" (super class) Class inherit their specific features to the "child" Class (sub class).-Mutual relationship (Association) is the relationships that are mutual relationships, such as "Class" students associated with the "Class" of course registration.
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