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Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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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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- Draw these on the given diagram: Associations (aggregations/compositions if needed) with names and multiplicities, generalization, attributes (withvisibility and attribute types).arrow_forwardNeed some help with this question.arrow_forwardPropose a UML class diagram for this repair management system. A company want to manage repair requests of its employees. Each employeebelongs to a department. The system will allow the employee of each departmentto create a ticket which include the details of the repair request. The ticket will bemanaged by a different employee. Of each ticket an appointment must bescheduled base on the availability of the ticket initiator and the repair employee.To do the required repair this employee may use some resources. A list of resourcewill be assigned to each ticket. This list include resource that could be infrastructureresource or technology resources. Once the repair is done, the status of the repairmust be tagged as completedarrow_forward
- Can you help with the UML diagram please,thank you so mucharrow_forwardI nee help in this question of MCQ via the UML Picture. Q)What is the class relationship that best describes Car and Driver? Group of answer choices a)Car (whole) : Driver (Part) (Aggregation) b)Driver (whole) : Car (Part) (Aggregation) c)Car (whole) : Driver (Part) (Composition) d)Driver (whole) : Car (Part) (Composition) e)Car is associated to Driver f)None of the givenarrow_forwardYou will be required to submit an informational abstract by the end of unit 6. Your abstract should be no longer than one (1) page and it needs to include the key elements of an informational abstract. The abstract will be written based on the topic you have selected. The main goal of an informational abstract is to inform the viewer on your research. Its main purpose to provide your audience with a clear idea of what you research is about through the summarization of your main points, key information, and findings. Your abstract must include the following:• Background: Write two or three sentences introducing your research. Provide your audience with context for your project.• Goals: Write two to three sentences providing the purpose of your research.• Methods: Write two to three sentences explaining how you performed your research. You are not expected to carry out any experiments here, and it is anticipated that most of your research will come from reading various online sources.…arrow_forward
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