The document discusses several types of information systems including transaction processing systems, office automation systems, knowledge work systems, decision support systems, executive support systems, and group decision support systems. It provides brief descriptions of each system and examples of where and how each system is used.

1. Transaction Processing System

An information processing system that is used
for business transactions that involves the
collection, modification, and the retrieval of
data.

Characteristics:
− Performance
− Reliability
− Consistency

2. Transaction Processing System
Where is it used?

Used in banks and credit card companies to
track the customer's purchases when using debit
or credit cards

Can be also used in airline companies if they
want to track reservations.

3. Transaction Processing System

Examples:
– Online Ticketing System (TicketMaster)
– Airline Ticket Reservation System
– ATM Machine

4. Office Automation Systems

Information system that collects, processes,
stores, and transmits electronic messages

5. Office Automation Systems
Where is it applied?
- Office automation systems are applied in
business and communication functions that used
to be done manually in a organization.

6. Office Automation Systems
Examples:
- Electronic Communication ( E-mail , Voice
Mail)
-Electronic Publishing
- Facsimile Transmission Machine (FAX)

7. Knowledge Work System
- Knowledge Work Systems (KWS) serve the
information needs at the knowledge level of an
organization. It is designed to aid knowledge
workers.

8. Knowledge Work System
Where is it used?

Used in the firms of lawyers, accountants, and
management consultants

9. Knowledge Work System
Examples:
– Computer-aided Design (CAD)
– Computer-aided Manufacturing (CAM)
– Virtual Reality Modeling Language (VRML)

10. Decision Support System
- As the name implies, it is a computer-based
information system that supports or aids an
organization in making decision-making
activities.

11. Decision Support System

A decision support system is used in the
management, operations, and planning levels of
an organization. (Usually in the mid and higher
management)

Extensively used in business and management

12. Decision Support System
Examples:
– Clinical Decision Support System for medical
diagnosis
– Canadian National Railway's support system
that tests its equipment on a regular basis
– DSSAT 4 Package ( Decision Support System
for Agrotechnology Transfer)

13. Executive Support System
- An executive support system is a software that
allows the user to transform enterprise date into
accessible and executive-level reports.
-Enhances decision making for executives

14. Executive Support System
-Used by executives in higher levels of
management in a company.

15. Executive Support System
Examples:
– Cambridge Systematic
– Executive Support System of Meditech
– Market Reports
– External Databases
– Patent Records

16. Group Decision Support System
- A class of electronic meeting systems
- A collaboration technology designed to support
meetings and group work.
-Distinct from computer software cooperative
work as GDSS are more focused on task
support.

17. Group Decision Support System
-Primarily used in projects that require
collaboration may it be in the field of business
or in other fields.

18. Group Decision Support System
Examples:
– YnSyte's WIQ
– MeetingSphere
– ThinkTank
– Teamsupport.net