10 Information System Concepts

8/4/2019 10 Information System Concepts

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Information System for Managers

Prof. Sudarshan

IBS Gurgaon

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Information System Concepts

Understanding Data and Information,

System Concepts,

Open System, Closed System,

Business as a System,

What is Information System,

Classification of IS in organization,

Attributes of Information Quality


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Data & Information

Data

Information

System Information System


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System

Group of Interrelated components working

3 Basic components in a dynamic system are - Input, Processing & Output Data.

2 Additional components to have a cybernetic or self regulatory system are

Feedback and Control Data.

Within a clearly defined boundary

Towards a common goal or objective.

Biological System Human body

Technological System Thermal Power Plant

Socio Economic System Business organization


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Systems

Closed Systems

Open Systems


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What is Information System?

Input data resources ->Information -> Productor Service KPI Output

Database

IS Resources People

Hardware

Software

Data

Network

Information products


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Why to study Information System?

Objective: Control and Performance

Improvement

More important is to survive in competition.

IS Functions

Business functional area

Contributor to operational efficiency

Decision making support

Strategic advantage for an organization in global market

Networked business enterprise


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A schematic representation of an Information System

Interpretation

Program of Action Control Feedback Decision

Presentation of Information

Processing / Analytics

Database / Data Warehouse

Data SourceExternal Database Internal Operations Suppliers Customers


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Schematic Representation of Information System

Source:


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Business as a System

A business is an organizational system where-economic resources (input) are transformed by

-various business processes (processing) into

-goods or services (output).

Information system provides information (Feedback)

on the operations of the system to management fordirection and maintenance of the system (Control).


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What Is Business?

An organization that

provides goods and

services to earn profits

Profits:

The positive difference

between revenues and

expenses


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PhysicalResources

Labor Capital

Entrepreneurs

Factors of Production

InformationResources


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Circular Flow in Market Economy

OUTPUT MARKETS

Goods

Services

INPUT MARKETS

Labor

Capital

Entrepreneurs

Physical Resources

Information Resources

HOUSEHOLDS

Demand products in

output markets

Supply resources in

input markets

FIRMS

Supply products in

output markets

Demand resources in

input markets

DEMAND

DEMAND SUPPLY

SUPPLY

Copyright 2003 Prentice Hall, Inc. 1 - 13


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Looking to the Future

Three Major Forces:

The information revolution will continue to boost

productivity

Technological breakthroughs will create new

industries

Increasing globalization will create larger markets

and tougher competition


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IS in Organization

Information System ClassificationExecutive Support Systems

Management Information SystemsDecision-Support Systems

Knowledge Management Systems

Transaction Processing Systems

Office Automation Systems


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Information Quality

Software Quality Attributes [Trade Offs]

I

Performance

ReliabilitySecurity


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Case 1

Aviall Inc.: From failure to success with

Information Technology[Refer: MIS by James A. O. Brian and George M Marakas]


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10 Information System Concepts

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