Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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QUESTION 3
How do you model the following situation with a UML class diagram:
There are multiple different bird species, e.g. blackbird, thrush and starling.
1
(abstract)
Bird
Starting Blackbird Thrush
abstract)
Bird
375
Starling Blackbird Thrush
Bird
51
Starling Blackbird Thrush
Both b and c
QUESTION 4
How do you model the following situation with a UML class diagram:
An order is made with exactly one waiter, one waiter handles multiple orders.
1
Order
Waiter
Order
Walter
Order
Waiter
Order
Waiter
2
3
2
3
4
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Transcribed Image Text:QUESTION 3 How do you model the following situation with a UML class diagram: There are multiple different bird species, e.g. blackbird, thrush and starling. 1 (abstract) Bird Starting Blackbird Thrush abstract) Bird 375 Starling Blackbird Thrush Bird 51 Starling Blackbird Thrush Both b and c QUESTION 4 How do you model the following situation with a UML class diagram: An order is made with exactly one waiter, one waiter handles multiple orders. 1 Order Waiter Order Walter Order Waiter Order Waiter 2 3 2 3 4
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