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For each of the following UML terms (see Sections 3.8 and 4.6), discuss the corresponding term in the EER model,

Question:

For each of the following UML terms (see Sections 3.8 and 4.6), discuss the corresponding term in the EER model, if any: object, class, association, aggregation, generalization, multiplicity, attributes, discriminator, link, link attribute, reflexive association, and qualified association.

**Data from section 3.8:

EMPLOYEE DEPARTMENT Multiplicity Notation in OMT: 4.* WORKS_FOR 1.1 Name: Name_dom Fname Name Number 11 0<br>O 0.1 1.1 0.1 Minit

**Data from section 4.6:

PERSON Name Ssn Birth_date Sex Address age STUDENT EMPLOYEE ALUMNUS DEGREE Major_dept Salary Year Degree Major hire_emp chang

Transcribed Image Text:

PERSON Name Ssn Birth_date Sex Address age ALUMNUS STUDENT Major_dept change_major ΕMPLOYEE DEGREE Salary Year new_alumnus Degree Major hire_emp FACULTY STUDENT ASSISTANT Percent_time hire_student STAFF Position Rank hire_staff promote TEACHING_ ASSISTANT UNDERGRADUATE_ STUDENT RESEARCH_ GRADUATE_ ASSISTANT STUDENT Project Course Degree_program Class change_project assign_to_course change_degree_program change_classification

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The entity relationship ER data model has existed for over 35 years It is well suited to data modelling for use with databases because it is fairly abstract and is easy to discuss and explain ER model…View the full answer


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Fundamentals Of Database Systems

Fundamentals Of Database Systems

ISBN: 9780133970777

7th Edition

Authors: Ramez Elmasri, Shamkant Navathe

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Chapter # 4
Section: Review Questions
Problem: 10
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Question Posted: November 05, 2021 07:03:45
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