The document discusses different types of information systems including transaction processing systems, office automation systems, management information systems, decision support systems, group decision support systems, expert systems, and executive support systems. It provides brief definitions and descriptions of each type of system, highlighting their key characteristics, components, and applications.

1. MODULE -2 KINDS OF INFORMATION SYSTEM

2. Information system Information systems are implemented within an organization for the purpose of improving the effectiveness and efficiency of that organization.

3. Kinds/ Types of IS Transaction Processing system Office Automation System Management Information System Decision Support System Group Decision Support System Expert System Executive Support System

4. Transaction Processing system A TPS is a information system that records company transaction…. A transaction is defined as a exchange or cross-functional information system between two or more business entities….. Events that occur as part of doing business like sales, purchases, refunds and payments.. Eg: Ticket reservation

5. Characteristics of TPS It records Internal and external transaction for a company. It performs routine, repetitive task. Transaction can be recorded in online

6. Process of TPS Transaction Process Enter data Validate data Validated Results Generate Output Facilitate Queries

7. Process of TPS There are six steps in processing a transaction ……….. Data entry Data capture Data validation Processing and revalidation Storage Output generation Query support

8. Office Automation System OAS means the complete integration of… Word processing, Electronic filing, Diary management and Communication, including electronic mail, telex and fax….

9. Components of OAS Function Software package Software type Word processing Electronic Spreadsheets Graphics Project management Electronic Mail

10. Advantages of OAS Increased productivity Improved quality of work Improved organizational effectiveness Better service Better management control Disadvantages: Office staff became dependent on computers OAS is expensive than manual system Health problem to employees

11. Managemen t Information System According to G.B. Davis , “ MIS is an integrated man/machine system for providing information to support the operations, management and decision making function in an organization” MIS is a system that aid management in making , carrying out and controlling decision.

12. Characteristics of MIS MIS is an integrative system MIS is coordinated system MIS is flexible MIS enhance productivity MIS is a feedback system MIS transform the data into information

13. Functions of MIS Collect Data Store and Process Managers Present Information to Mangers

14. Application of MIS Strategy support Computers can assist management to understand the effects of their strategies and help enable effective decision making……… Data processing MIS system allow for the collation of vast amounts of business data, but they also provide a valuable time saving benefit to the workforce……………….

15. Decision Support System DSS is an outcome of MIS providing support for management at operational control, management control and strategic planning…. In DSS currently receiving much publicity is computer graphics….. The term decision support system refers to a system which support process of making decisions…..

16. Cont………. Definition….A set of well-integrated, user-friendly, computer-based tools that combine data with various decision making models- quantitative and qualitative to solve semi-structured and unstructured problems According to Scott Morton, “ DSS as interactive computer based systems, which help decision-makers to utilize data and model to solve unstructured problems”

17. Components of DSS Hardware Resource Software Resource Data Resource Model Resource People Resource Decision Support System Package

18. Application of DSS Independent problem Interrelated problem Organizational problem

19. Group Decision Support System Meaning of GDSS………. GDSS is an interactive, computer based system that facilities solution of unstructured problem by set of decision makers working together as a group…..

20. Chacterstics of GDSS that Enhance Decision Making Special design Ease of use Flexibility Decision- Making Support Reduction of Negative group behavior Parallel communication

21. Expert System An experts system is software that contains a knowledge base of facts and relationships and has ability to make inferences based on that knowledge base According to REBOH and REITER….. “ Expert systems are interactive computer programs incorporating judgment, rules of thumb, intuition and other expertise to provide knowledgeable advice about a variety of tasks”

22. Components of ES Knowledge acquisition subsystem Knowledge base Inference engine. User interface.

23. Business Application of Expert System Manufacturing Marketing Accounting and Finance Personnel General Business

24. Executive Support System EIS or ESS are information system that combine many of the features of management information system and decision support system …….

25. Components of EIS Hardware Software Interface Telecommunication

26. Applications of EIS Manufacturing Marketing Financial