Coronel PPT Ch01

11e

Database Systems
Design, Implementation, and Management

Coronel | Morris

Chapter 1
Database Systems
©2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.

Learning Objectives
 In this chapter, you will learn:
 The difference between data and information
 What a database is, the various types of databases, and why they are valuable assets for decision making
 The importance of database design
 How modern databases evolved from file systems

©2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.

2

Learning Objectives
 In this chapter, you will learn:
 About flaws in file system data management
 The main components of the database system
 The main functions of a database management system
(DBMS)

©2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.

3

Data vs. Information
Data

 Raw facts
 Raw data - Not yet been processed to reveal the meaning  Building blocks of information
 Data management

Information

 Produced by processing data
 Reveals the meaning of data
 Enables knowledge creation
 Should be accurate, relevant, and timely to enable good decision making  Generation, storage, and retrieval of data

©2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.

4

Data vs. Information

©2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.

5

Data vs. Information
 Search the web to compare wireless wearable devices
(smartwatches), their features and corresponding prices.  Make the distinction between data and information.
 Provide examples of what