1. TRANSACTION PROCESSING SYSTEMS (TPS)
 An information processing system for business
transactions involving the collection, modification
and retrieval of all transaction data
 Characteristics of a TPS include performance,
reliability and consistency
 TPS is also known as transaction processing or real-
time processing

2. Where used?
 order processing
 payroll
 Accounting
 Manufacturing
 record keeping

3. Examples
 Automated Teller Machine (ATM)
 Airline Reservation systems
 Ticket Net

4. Office Automation Systems (OAS)
 collects, processes, stores and transmits data and
information in the form of electronic office
communication
 considered as computer-based information system
that collects, process, store and transmit electronic
message, document and other form of
communication among individual, work group and
organizations

5. Where used?
 For documents
 For schedules
 For e-mails
 For conferences
 For communication

6. Examples
 Document management system
 word processing
 desktop publishing
 Spreadsheet software
 Reprographic
 document image processing
 Message handling system
 Office support system

7. Knowledge Work Systems (KWS)
 serve the information needs at the knowledge level of
the organization.
 aid knowledge workers.

8. Where used?
 scientific or engineering design workstations
 promote the creation of new knowledge
 ensure that new knowledge and technical expertise
are properly integrated into the business

9. Examples
 CAD/CAM systems
 Virtual reality systems
 Investment workstations

10. Decision Support System (DSS)
 A computerized information system used to support
decision-making in an organization or business.
 enables users to sift through and analyze massive
reams of data and compile information that can be
used to solve problems and make better decisions
 gathers and presents data from a wide range of
sources that help people make decisions

11. Where used?
 Medical diagnosis
 Verifying the credit of a loan
 Analyzing costs

12. Examples
 Status Inquiry System
 Data Analysis System
 Information Analysis System
 Accounting System
 Model Based System

13. Executive Support Systems (ESS)
 allows users to transform enterprise data into
quickly accessible and executive-level reports
 supports senior executive information and decision-
making needs
 provides easy access to internal and external
information relevant to organizational goals

14. Where used?
 Manufacturing
 Marketing
 Financial Analysis

15. Examples
 Accounting System
 Prewritten EIS
 Custom EIS

16. Group Decision Support Systems (GDSS)
 assists users in making decisions by facilitating
group collaboration.
 Participants use a common computer or network to
enable collaboration supporting integrated systems
thinking for complex decision making.

17. Where used?
 Group work
 Meeting protocol

18. Examples
 Think Tank
 Teamsupport.net
 ynSyte's WIQ
 spilter.nl
 facilitate.com
 Meeting Sphere