Essentials of MIS (13th Edition)
Essentials of MIS (13th Edition)
13th Edition
ISBN: 9780134802756
Author: Kenneth C. Laudon, Jane Laudon
Publisher: PEARSON
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Chapter 6, Problem 6DQ
Program Plan Intro

Database:

  • A group of structured data that can be used to serve many applications by centralizing the data and regulating redundant data is called as database.
  • In the database, data is appeared to users as being stored in only one location.

Database Management Software:

A collection of programs is called as database management system which provides some features such as:

  • Management of databases
  • Controlling access to data
  • Query language to retrieve information
  • The data in the DBMS (Data Base Management system) is made up of three components such as:
    • Physical database
    • Database engine
    • Database schema

DBMS acts as an interface between application programs and the physical data files.

Database Design:

  • It is important to design a database because it involves understanding the data relationships, the type of data maintained in the database, data usage, and how the organization need to change to manage data from a company-wide perspective.
  • The main two aspects of database design are as follows.
    • Physical design – The actual arrangement of database on direct-access storage devices.
    • Conceptual design – The abstract model of database from a business perspective.

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