Reference no: EM1359232
What are the main building modules of the Entity Relationship model? Discuss each one.
What is a weak entity, and how is it represented in an E-R diagram? Give an example.
What three (often conflicting!) database requirements must be addressed in database design?
Given the following business rules, create the appropriate E-R diagram for each of the specified relationships:
(Teacher's note: Since many relationships and cardinalities are determined by an organization's business rules, some students will produce E-R diagrams that are different from those presented here. You can use this problem to illustrate how business rules shape the database blueprint and why, therefore, the development of these business rules is a critical activity to database designers).
A company operates four departments.
Each department in part (a) employs employees.
Each of the employees in part b may or may not have one or more dependents.
Each employee in part (c) may or may not have an employment history.
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Illustrate what effect will each of following events have
: Illustrate what effect will each of the following events have on the current account balance and the exchange rate if the exchange rate is fixed.
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Show change management plan
: Identify sources of conflict, conflict handling modalities and check how the strategic project will impact the organization in terms of money, budget, revenue, etc.
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Asian financial crisis
: In the midst of the Asian financial crisis, Malaysia's Prime Minister Mahathir Mohamad accused an international cabal of Jewish financiers of deliberately provoking the crisis to wreck Malaysia's economy.
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Show how to maintain motivation
: How to Maintain Motivation - The top way for a student to succeed academically is by having a postive attitude and being motivated.
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Main building modules of entity relationship model
: What are the main building modules of the Entity Relationship model? Discuss each one. What is a weak entity, and how is it represented in an E-R diagram? Give an example.
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Elucidate and illustrate how they will help to improve
: Elucidate and illustrate how they will help to improve the GDP as a tool for measuring the well-being of a nation.
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Compute total direct material cost
: In April 2005 Corporation A made (and sold) 1,200 leather collars and 2,400 nylon collars. Costs incurred in April 2005 are listed below:
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Client experiencing sexual dysfunctions
: Counselors should use appropriate treatment strategies when working with clients experiencing sexual dysfunctions, compulsions, and/or addictions.
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Calculating amount of deductible expenses
: Jimmy owns a trucking business. During the current year he incurred the following:
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