Fill in the Blanks
| 1. | The relationship between a superclass and a subclasses is ________. |
| 2. | The U-shaped symbols in EER model indicates that the ________ is a ________ of the ________. |
| 3. | Attribute inheritance is the property by which ________ entities inherit values of all attributes of the ________. |
| 4. | The E-R model that is supported with the additional semantic concepts is called the ________. |
| 5. | Attribute inheritance avoids ________. |
| 6. | A subtype with more that one supertype is called a ________. |
| 7. | A total participation specifies that every member in the ________ must participate as a member of some ________ subclass in the ________. |
| 8. | A partial participation constraint specifies that a member of a ________ need not belong to any of its ________ ... |
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