Page 40 - DCAP208_Management Support Systems
P. 40
Unit 3: Decision Support Systems
6. Task-oriented activities is an element which means that the support system can handle Notes
more than one activity at a time, which is essential.
7. A third-party package often has customizable aspects that does not allow a company to
change various aspects in the system.
3.3 Components of Decision Support Systems
A typical Decision support systems has four components: data management, model management,
knowledge management and user interface management.
Figure 3.1: Components of Decision Support System
Other Internet,
Computer-based intranets
systems extranets
Data: external
and internal
Data Model External
Management Management models
knowledge-based
Subsystems
User
interface
Organizational
KB Manager (user)
Source: http://www.msit2005.mut.ac.th/msit_media/1_2553/ITEC3614/Lecture/2010074 09594
6DI.pdf
3.3.1 Data Management Component
The data management component performs the function of storing and maintaining the
information that you want your Decision Support System to use. The data management
component, therefore, consists of both the Decision Support System information and the Decision
Support System database management system. The information you use in your Decision Support
System comes from one or more of three sources:
Organizational information: You may want to use virtually any information available in
the organization for your Decision Support System. What you use, of course, depends on
what you need and whether it is available. You can design your Decision Support System
to access this information directly from your company’s database and data warehouse.
However, specific information is often copied to the Decision Support System database to
save time in searching through the organization’s database and data warehouses.
External information: Some decisions require input from external sources of information.
Various branches of federal government, Dow Jones, and the internet, to mention just a
few, can provide additional information for the use with a Decision Support System.
Personal information: You can incorporate your own insights and experience your
personal information into your Decision Support System. You can design your Decision
LOVELY PROFESSIONAL UNIVERSITY 33
