Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Chapter 1, Problem 1.31PAE
Program Plan Intro
Develop an enterprise data model for a student-run newspaper.
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Consider the data needs of the student-run newspaper in your university or high school. What are the data entities of this enterprise? List and define each entity. Then, develop an enterprise data model showing these entities and important relationships between them.
What is the purpose of a data model, and how will it assist us in reaching our objective?
Figure 2-26 shows a grade report that is mailed to students at the end of each semester. Prepare an ERD reflecting the data contained in the grade report. Assume that each course is taught by one instructor. Also, draw this data model using the tool you have been told to use in the course. Explain what you chose for the identifier of each entity type on your ERD.
Chapter 1 Solutions
Modern Database Management
Ch. 1 - Prob. 1.1RQCh. 1 - Prob. 1.2RQCh. 1 - Prob. 1.3RQCh. 1 - Prob. 1.4RQCh. 1 - Prob. 1.5RQCh. 1 - Prob. 1.6RQCh. 1 - Prob. 1.7RQCh. 1 - How are relationships between tables expressed in...Ch. 1 - What does the term data independence mean, and why...Ch. 1 - Prob. 1.10RQ
Ch. 1 - Prob. 1.11RQCh. 1 - Prob. 1.12RQCh. 1 - Prob. 1.13RQCh. 1 - Prob. 1.14RQCh. 1 - Prob. 1.15RQCh. 1 - Prob. 1.16RQCh. 1 - Prob. 1.17RQCh. 1 - Prob. 1.18RQCh. 1 - Prob. 1.19RQCh. 1 - Prob. 1.20RQCh. 1 - Prob. 1.21RQCh. 1 - Prob. 1.22RQCh. 1 - Prob. 1.23RQCh. 1 - Prob. 1.24RQCh. 1 - Prob. 1.25RQCh. 1 - Prob. 1.26RQCh. 1 - Prob. 1.27PAECh. 1 - Prob. 1.28PAECh. 1 - Prob. 1.29PAECh. 1 - Prob. 1.30PAECh. 1 - Prob. 1.31PAECh. 1 - Prob. 1.32PAECh. 1 - Great Lakes Insurance would like to implement a...Ch. 1 - Figure 1-22 shows an enterprise data model for a...Ch. 1 - Prob. 1.35PAECh. 1 - Prob. 1.36PAECh. 1 - Prob. 1.37PAECh. 1 - Prob. 1.38PAECh. 1 - Prob. 1.39PAECh. 1 - Prob. 1.40PAECh. 1 - Prob. 1.41PAECh. 1 - Prob. 1.42PAECh. 1 - Prob. 1.43PAECh. 1 - Prob. 1.44PAECh. 1 - Consider the project data model shown in Figure...Ch. 1 - Answer the following questions concerning Figures...Ch. 1 - Prob. 1.47PAECh. 1 - Helen Jarvis wants to determine the most important...Ch. 1 - In this chapter, we described four important data...
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- What are the important types of relationships in a data model, and explain them?arrow_forwardImagine that you are discussing the concept of a data warehouse with a group of prospective clients. What is the best approach to convey the benefits to them? Which of the following best defines multidimensional data analysis for them?arrow_forwardDuring the analysis phase, which data modeling strategies are the most beneficial, and why is it vital to make use of them? How do we choose the data points that will be used in the modeling process?arrow_forward
- Develop a simple data model for a student database that includes student data, student contact data, student demographic data, student grades data, and student financial data. Determine the data attributes that should be present in each table, and identify the primary key for each table. Develop a complete entity relationship diagram that shows how these tables are related to one another.arrow_forwardWhat are the most prevalent mistakes that might occur throughout the data modelling process?arrow_forwardDevelop a simple data model for a student database that includes student contact data, student demographic data, student grades data, and student financial data. Determine the data attributes that should be present in each table, and identify the primary key for each table. Develop a complete ER diagram that shows how these tables are related to on another.arrow_forward
- In the process of analysis, how significant is the role that data modeling plays? How can we figure out which data will be necessary for the model?arrow_forwardWhat is the difference between a data entity (data model) and an external entity (process model)?arrow_forwardYou've been enlisted to build an efficient data model for a company that provides conference management services to various organizations. You've identified the following entities: Organization, Conference, Delegate, Event, Caterer, Entertainer. No others. Below are the statements you were previously given. Use them to infer which entities have relationships with each other, as well as the types of those relationships, and constraints if any. All that you should submit is a set of the relevant business rules. Once again, remember that entities don't necessarily directly connect, unless the information collected specifies that they are connected. ● "We organize and manage conferences for various organizations." "Some organizations have a conference once off. Others might have more than one conference over time." "A conference involves delegates, which may come from all walks of life: industry, academia and government. At the end of day, a delegate is delegate, though. just keep track of…arrow_forward
- When doing an analysis, how important is it to use data modeling? How can we determine what data will be required for modeling?arrow_forwardWhat are the most common errors that might occur throughout the data modelling process?arrow_forwardExplain the Entity-Relationship Diagram (ERD) and its components. How does it help in visualizing and designing data models?arrow_forward
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