BuyFind

Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781337627900
BuyFind

Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781337627900

Solutions

Chapter
Section
Chapter 2, Problem 1RQ
Textbook Problem

Discuss the importance of data models.

Expert Solution
Program Plan Intro

Data Model:

  • Data Model refers to the logical inter relationship and the data flow involved between different data elements.
  • It defines how data is processed, connected and stored inside the system.
  • A data model can be either concrete or abstract.
  • It consists of components such as data types, data items, data sources, event sources, and links.
  • The three styles of data model are conceptual data model, physical data model, and logical data model.

Explanation of Solution

Importance of Data Models:

  • The main function of a data model is that they help to understand complexity of real world environment.
  • The data model is used by the database designer to enhance the interaction among designers, application programmers, and end users.
  • Data models will help to represent the required data and the format that is used for different businesses processes.
  • They help to prevent data redundancy.
  • The database design tools have made the development of data models to possibly diminish the database design error potential.
  • It also helps to eliminate the discrepancies between the database designs components and the real world data environment.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Get Solutions

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Get Solutions

Chapter 2 Solutions

Database Systems: Design, Implementation, & Management
Show all chapter solutions
Ch. 2 - What is a relationship, and what three types of...Ch. 2 - Give an example of each of the three types of...Ch. 2 - What is a table, and what role does it play in the...Ch. 2 - What is a relational diagram? Give an example.Ch. 2 - What is connectivity? (Use a Crows Foot ERD to...Ch. 2 - Describe the Big Data phenomenon.Ch. 2 - What does the term 3 Vs refer to?Ch. 2 - What is Hadoop, and what are its basic components?Ch. 2 - What are the basic characteristics of a NoSQL...Ch. 2 - What is logical independence?Ch. 2 - What is physical independence?Ch. 2 - Use the contents of Figure 2.1 to work Problems...Ch. 2 - Use the contents of Figure 2.1 to work Problems 13...Ch. 2 - Use the contents of Figure 2.1 to work Problems 13...Ch. 2 - Using Figure P2.4 as your guide, work Problems 45....Ch. 2 - Using Figure P2.4 as your guide, work Problems 45....Ch. 2 - Using Figure P2.6 as your guide, work Problems 68....Ch. 2 - Using Figure P2.6 as your guide, work Problems 68....Ch. 2 - Using Figure P2.6 as your guide, work Problems 68....Ch. 2 - Typically, a hospital patient receives medications...Ch. 2 - United Broke Artists (UBA) is a broker for...Ch. 2 - Using the ERD from Problem 10, create the...Ch. 2 - Convert the ERD from Problem 10 into a...Ch. 2 - Describe the relationships (identify the business...Ch. 2 - Create a Crows Foot ERD to include the following...Ch. 2 - Write the business rules that are reflected in the...Ch. 2 - Create a Crows Foot ERD for each of the following...Ch. 2 - Write the business rules that are reflected in the...

Additional Engineering Textbook Solutions

Find more solutions based on key concepts
Show solutions
What is metadata?

Database Systems: Design, Implementation, & Management

List two advantages of using a self-centering chuck.

Precision Machining Technology (MindTap Course List)

Explain the purpose of the relief valve and one-way check valve in an electric fuel pump.

Automotive Technology: A Systems Approach (MindTap Course List)

Solve the following set of equations using MATLAB. 105[7.20001.491.4907.204.221.491.49008.4404.22004.2204.22001...

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

If your motherboard supports ECC DDR3 memory, can you substitute non-ECC DDR3 memory?

A+ Guide to Hardware (Standalone Book) (MindTap Course List)

How does a search tool locate a file on your computer or mobile device? (195)

Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)

What is the fundamental distinction between a node and a host?

Network+ Guide to Networks (MindTap Course List)