Modern Database Management
13th Edition
ISBN: 9780134792293
Author: Hoffer
Publisher: PEARSON
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Chapter 1, Problem 1.1RQ
Program Plan Intro
(a)
Define Data.
Expert Solution
Explanation of Solution
Data are the raw facts and are referred to as the stored representation of events and objects that have importance and meaning in the user’s environment. Data can be structured or unstructured.
Program Plan Intro
(b)
Define Information.
Expert Solution
Explanation of Solution
Both the data and information are closely related to each other. Information is the data that is processed to increase the knowledge of a person who uses that data.
Program Plan Intro
(c)
Define Metadata.
Expert Solution
Explanation of Solution
Metadata is the data that describe the characteristics or properties of data used by the end user and the context of those data.
Program Plan Intro
(d)
Define Enterprise resource Planning.
Expert Solution
Explanation of Solution
Enterprise Resource Planning is a process of managing businesses. This process is used by many organizations to manage and integrate different parts of their businesses. It integrates all the important factors like product planning, manufacturing, development and sales.
Program Plan Intro
(e)
Define Data Warehouse.
Expert Solution
Explanation of Solution
Data Warehouse is a collection of large amount of data and information from different sources and management of that data to provide meaningful business insights.
Program Plan Intro
(f)
Define Constraint.
Expert Solution
Explanation of Solution
Constraints are used for specifying rules for the data in a table. It is used to limit the type of data to ensure reliability and accuracy of the data.
Program Plan Intro
(g)
Define
Expert Solution
Explanation of Solution
Database is a collection, organization, storage, update and access of data. Database makes data management easy.
Program Plan Intro
(h)
Define Entity.
Expert Solution
Explanation of Solution
Entity can be a place, person, object, concept or event in the user environment about which the organization wants to maintain the data.
Program Plan Intro
(i)
Define Database Management System.
Expert Solution
Explanation of Solution
Database management system is a software system that is used to create, store, update, retrieve, maintain and access user databases.
Program Plan Intro
(j)
Define Data lake.
Expert Solution
Explanation of Solution
Data lake is referred as a repository that stores a large amount of raw data in its native format. Data lake can store structured or unstructured data. Data lake stores data using a flat architecture.
Program Plan Intro
(k)
Define System Development life cycle.
Expert Solution
Explanation of Solution
System Development Life Cycle is a traditional method used to develop, maintain and replace
Program Plan Intro
(l)
Define Prototyping.
Expert Solution
Explanation of Solution
Prototyping is an iterative process involved in systems development in which there is a conversion of requirements to a working system which is revised continually through close work between users and analysts.
Program Plan Intro
(m)
Define Enterprise Data Model.
Expert Solution
Explanation of Solution
Enterprise Data Model creates an overall explanation and image of organizational data and not for a particular database. It may involve many databases and describes the scope of data maintained by the organization.
Program Plan Intro
(n)
Define Conceptual Data Model.
Expert Solution
Explanation of Solution
Conceptual data model is a detailed and technology independent specification of the overall structure of data of organization.
Program Plan Intro
(o)
Define Logical Data Model.
Expert Solution
Explanation of Solution
Logical data model is a data model that describes the data in a detailed format without considering how the data is physically implemented in the database.
Program Plan Intro
(p)
Define Physical Data Model.
Expert Solution
Explanation of Solution
Physical data model describes how data from logical data model is stored by a database management system. A physical data model consists of table’s structure that includes column name, primary key, constraints, data type and relationships between tables.
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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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