LEC07_v1 - BUSI1003 Introduction to Management Information...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
1 BUSI1003 Introduction to Management Information Systems LEC 07 Managing Data Resources References: Laudon, K. C. and Laudon, J. P., Management Information  Systems: Managing the Digital Firm, 11th edition, Prentice-Hall,  2010.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Main Focus Main Focus Data and Data Management Creating, Designing and  Managing a Database Database Trends
Background image of page 2
3 What is Data Management? What is Data Management? Includes all of the activities involved  in making certain that an  organization s data are  accurate   and  up-to-date
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Control Data  Management Verification Storage Organization Retrieval Collection
Background image of page 4
5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 A record describes an  Entity person, place, thing, event about which data must be  kept.  e.g., an order in a sales order file Each characteristic or quality describing a  particular entity is an  Attribute   e.g., order number, order date, order amount The unique identifier to identify a record in a  table is a  Key field  (primary key) field used to retrieve, update, sort records, value must  be unique File Organization: Terms & Concepts
Background image of page 6
7 Traditional File Processing Traditional File Processing
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 Data redundancy and Data Inconsistency Program-Data Dependence Lack of Flexibility Poor Security Lack of Data-Sharing and Availability Problems with the Traditional Problems with the Traditional File Management File Management
Background image of page 8
9 Puts a database management system  (DBMS) in between the application  programs and the database A DBMS: Permits an organization to centralize data,  manage them efficiently, and provide access 
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/01/2010 for the course MIS BUSI1003 taught by Professor Adawong during the Spring '10 term at HKU.

Page1 / 27

LEC07_v1 - BUSI1003 Introduction to Management Information...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online