Types of Information Systems.

o       Office Automation System

o       Transaction processing system

o       Management information System

o       Processing control System

Office automation System.

 

 

Office Automation systems (OAS) are systems that try to improve the productivity of employees who need to process data and Information.

   Example :

           Microsoft Office Package

Transaction processing system.

  

Transaction processing systems are information system applications that capture and process data about (or for) business transaction. They are some time called Data Processing Systems (DPS).  A TPS is focused at the orational level of a         business.

The management information produced by transaction processing systems usually consists of detail reports of daily transactions or future transactions. The reports generated by a TPS are useful only to lower level managers.

A TPS usually operates only within one functional area of a business. As an example, in an organization each department, marketing, accounting and finance, production, and research and development  has its own TPS.

Main components of Transaction processing System are hardware (machines), software (instructions or programs), people (programmers, managers, or users), procedures (rules), data and information.

Management Information System.

A management Information System (MIS) is mainly concerned with internal sources of information. MIS usually take data from the transaction processing systems and summarize it into a series of management reports.

MIS reports tend to be used by middle management and operational supervisors.

Processing control system

Process control systems are used to control machine and equipments.  e.g.: cement production factory, vehicle manufacturing and assembling ,  robots etc.

Intelligent information system

 A computer application that does the work of a human experts. For example, there are expert systems that can diagnose human illnesses, make financial forecasts, and schedule routes for delivery vehicles. Some expert systems are designed to take the place of human experts, while others are designed to aid them.

Expert systems are part of a general category of computer applications known as artificial intelligence . To design an expert system, one needs a knowledge engineer, an individual who studies how human experts make decisions and translates the rules into terms that a computer can understand.

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