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2.1

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LEARNING OBJECTIVES

ANALYZE ROLES OF 6 TYPES OF INFORMATION

SYSTEMS

DESCRIBE RELATIONSHIPS AMONG

INFORMATION SYSTEMS

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2.2

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TYPES OF INFORMATION SYSTEMS

DATA WORKERS

KIND OF SYSTEM GROUPS SERVED

STRATEGIC LEVEL SENIORMANAGERS

MANAGEMENT LEVEL MIDDLEMANAGERS

OPERATIONAL OPERATIONALLEVEL MANAGERS

KNOWLEDGE LEVEL KNOWLEDGE &

SALES & MANUFACTURING FINANCE ACCOUNTING HUMANRESOURCESMARKETING2.5

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Information Systems

An information system(IS) is typically considered to be a set of interrelatedelements or components that collect(input), manipulate(processes), and

disseminate (output) data and information and provide a feedback

mechanism to meet an objective.

Open System

Close System

Definitions

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Types of Information Systems

1. Informal Information System

2. Formal Information System

Formal Information System:A formal information system is

based on the organisation represented by the organizationchart. The chart is a map of position and their authorityrelationship,indicated by boxes and connected by straightlines. it is concerned with the pattern of authority,communication and work flow.

Informal Information System:The informal informationsystem is employee based system design to meetpersonnel and vocational needs and to help in the solutionof work-related problems. it also funnels informationupward through indirect channels. In this way, it is

considered to be a useful system because it works withinthe framework of the business and its stated policies.

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An Information System is an organized combination of people, hardware,

software, communication networks and the data resources that collects,transforms and disseminates information in a organization.

Computer-based Information System

Computer Information System(s) (CIS) is a fieldstudying computers and algorithmic processes,including their principles, their software andhardware designs, their applications, and theirimpact on society[14][15][16] while IS emphasizes

functionality over design

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INFORMATIONTECHNOLOGY

Hardware

Software

Databases

Networks

Other related

components

are used to build

INFORMATIONSYSTEMS

Payroll

System

Inventor

y

System

Marketin

g System

Customer

Service

System

IS Vs IT

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Expanding Roles of IS1. Data Processing: 1950s-1960s

2. Management Reporting: 1960s-1970s

3. Decision support: 1970s-1980s

4. Strategic and End User Support: 1980s-1990s

5. Global Internetworking: 1990s-2000s

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Classification of IS

Information Systems

Operations Support

System ManagementSupport System

Transactionprocessing

systems

Process

control

systems

Officeautomation

systems

Manageme

nt

information

systems

Decisionsupport

systems

Executiveinformation

systems

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MAJOR TYPES OF SYSTEMS

EXECUTIVE SUPPORT SYSTEMS (ESS)

MANAGEMENT INFORMATION SYSTEMS (MIS)

DECISION SUPPORT SYSTEMS (DSS)

KNOWLEDGE WORK SYSTEMS (KWS) OFFICE AUTOMATION SYSTEMS (OAS)

TRANSACTION PROCESSING SYSTEMS (TPS)

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2.6

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TRANSACTION PROCESSING SYSTEMS (TPS)

OPERATIONAL LEVEL

INPUTS: TRANSACTIONS, EVENTS

PROCESSING: UPDATING

OUTPUTS: DETAILED REPORTS

USERS: OPERATIVE PERSONNEL

EXAMPLE: ACCOUNTS PAYABLE

TPS2.7

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TYPICAL TPS APPLICATIONS

Sales & Marketing Systems

MAJOR FUNCTIONS OF SYSTEMS:

Sales Management; Market Research;

Promotion; Pricing; New Products

MAJOR APPLICATION SYSTEMS:

Sales Order Info System; Market Research

System; Pricing System

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TPS2.8

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TYPICAL TPS APPLICATIONSManufacturing & Production Systems

MAJOR FUNCTIONS OF SYSTEMS:

Scheduling; Purchasing; Shipping / Receiving;

Engineering; Operations

MAJOR APPLICATION SYSTEMS:

Materials Requirements Planning Systems;

Purchase Order Control Systems; Engineering

Systems; Quality Control Systems

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TPS2.9

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TYPICAL TPS APPLICATIONSFinance & Accounting Systems

MAJOR FUNCTIONS OF SYSTEMS:

Budgeting; Accounting; Billing; CostAccounting

MAJOR APPLICATION SYSTEMS:

General Ledger; Accounts Receivable /Payable; Budgeting; Funds Management

Systems*

TPS2.10

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TYPICAL TPS APPLICATIONS

Human Resources Systems

MAJOR FUNCTIONS OF SYSTEMS:

Personnel Records; Benefits; Compensation;

Labor Relations; Training

MAJOR APPLICATION SYSTEMS:

Payroll; Employee Records; Benefit Systems;

Career Path Systems; Personnel Training

Systems

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TPS2.11

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TYPICAL TPS APPLICATIONS

Other Types (e.g., University)

MAJOR FUNCTIONS OF SYSTEMS:

Admissions; Grade Records; Course Records;

Alumni

MAJOR APPLICATION SYSTEMS:

Registration System; Student Transcript

System; Curriculum Class Control System;

Alumni Benefactor System

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TPS2.12