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InformationSystemsChap #1:

Information System

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OutlineDefinitions

Types of Information Systems

Information Systems Vs Information Technology

Expanding Roles of IS

Classification of ISEnterprise Resource Planning

Information Systems Development

IS as Discipline

Information systems: pportunities and Challenges

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DenitionsData

Ra! facts such as an employee"s name and num#er of

hours !or$ed in a !ee$% inventory part num#ers or salesorders&

Information

' collection of facts organi(ed in such a !ay that theyhave additional value #eyond the value of the facts

themselves&

DataInformation

)*+%,,, -. /nits)-.%,,, 0& 0ones

1estern Region

)-,,%,,, -,, /nits

*+ /nits

Data

Processing

Salesperson: 0& 0onesSales Territory:

1estern Region

Current Sales: -23

/nits 4 )-23%,,,

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Information Systems

An information system(IS) is typically considered to be a set of

interrelated elements or components that collect(input),

manipulate(processes), and disseminate (output) data and

information and provide a feedback mechanism to meet an

objective.

Definitions

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'n Information System is an organi(ed com#ination of people%

hard!are% soft!are% communication net!or$s and the data resources thatcollects% transforms and disseminates information in a organi(ation&

Computer6#ased Information System

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INFORMATION

TECHNOLOGY

7ard!are

Soft!are

Data#ases

8et!or$s

ther related

components

are used to #uild

I85R9'TI8SSTE9S

Payroll

System

Inventory

System

9ar$eting

System

Customer

Service

System

IS Vs IT

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Expanding oles of IS1. Data Processing 1!"#s$1!%#s

&. Management Re'orting 1!%#s$1!(#s

). Decision s*''ort 1!(#s$1!+#s

,. -trategic an En /ser -*''ort 1!+#s$1!!#s

". G0oa0 Internet2or3ing 1!!#s$##s

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Classi!ation of IS

Information Systems

perations

Support System 9anagementSupport System

Transaction

processing

systems

Process control

systems

ffice

automation

systems

9anagement

information

systems

Decision

support

systems

Executive

information

systems

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1. O'erations s*''ort s4stemsprocess data generated #y #usiness

operations

9a;or categories are:i< Transaction processing systems

ii< Process control systems

iii< ffice automation systems

&. Management -*''ort -4stemsprovide information and

support needed for effective decision ma$ing #y managers

9a;or categories are

i< 9anagement Information System

ii< Decision Support Systems

iii< Executive Information System

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1. O'erations -*''ort -4stem

i5 Transaction 'rocessing s4stems

= Process #usiness exchanges

= 9aintain records a#out the exchanges

= 7andle routine% yet critical% tas$s

= Perform simple calculations

ii< Process contro0 s4stems monitor and control industrial

processes&

iii< Office a*tomation s4stems automate office procedures and

enhance office communications and productivity&

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&. Management s*''ort s4stemsprovide information and support

needed for effective decision ma$ing #y managers

9a;or categories are:

i5 Management information s4stems Routine information for routine decisions

perational efficiency

/se transaction data as main input

Data#ases integrate 9IS in different functional areas

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ii5 Decision -*''ort -4stemInteractive support for non6routine decisions or pro#lems=End6users are more involved in creating a DSS than an 9IS

iii5 E6ec*ti7e information s4stems

provide critical information tailored to the information needs of

executives

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Ot8er categories

a5 E6'ert s4stems

5 En *ser com'*ting s4stems

c5 9*siness information s4stems

5 -trategic information s4stems

a< Expert Systems are $no!ledge6#ased systems that provides

expert advice and act as expert consultants to the users

#< End user computing systems support the direct% hands on use of

computers #y end users for operational and managerial

applicationsc< >usiness information systems support the operational and

managerial applications of the #asic #usiness functions of a firm

d< Strategic information systems provide a firm !hich strategic

products% services% and capa#ilities for competitive advantage

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Enterprise esour!e

"lanning E"$ Integrated programs that !an manage a

!ompany%s entire set of &usiness operations

Often !oordinate planning' in(entory !ontrol'

produ!tion and ordering

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Information Systems

De(elopment

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IS as Dis!ipline

IS is an interdisciplinary field influenced #y Computer Science%

Political Science% Psychology% perations Research% ?inguistics%

Sociology% and rgani(ational Theory&

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Challenges

-&Information overload

.&Employee mistrust

*&Difficult to #uilt

2&Security #reaches

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Opportunities-& Enhanced glo#al competitiveness

.& Capture mar$et opportunities

*& Support corporate strategy

2& Enhance !or$er productivity

+& Improve @uality of goods and services

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e!omended )oo*s0ames ">rien:9anagement Information Technology

Aenneth C& ?audon :

9anagement Information Technology

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The End+