UNIT 2 - Is in Perspective

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T8Business Information System (BIS)

IT45013 Introduction to IT andApplication

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Information System (IS) is collection ofcomponents that wor to!ether to pro"ideinformation to help in the operations andmana!ement of an or!ani#ation$

%omponents of IS consist hardware&software& data& people and procedure$

'usiness Information Systems ('IS) are ofteninte!rated in one product and can edeli"ered y the same software paca!e$

What is an IS?


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Traditional vs. Electronic Commerce


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E – Business


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E-business (electronic business) is conducting

business processes on Internet.

*'usiness

*%ommerce

*+rocurement



lectronic %ommerce (*%ommerce) in"ol"esany usiness transaction e,ecuted electronicallyand there are T-. types/

usiness to usiness ('2') usiness to consumer ('2%) consumer to consumer (%2%)

The !rowth is ein! stimulated y the increasin!internet access& !rowin! user condent& etter

payment system and rapidly impro"in! Internetand we security$

*%ommerce also oers opportunities for smallusiness to maret and sell at a low cost

worldwide& allowin! them to enter the !loal

Electronic and Mobile Commerce


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B2B('usiness*to*

'usiness)

Transactions of e*commerce etween twocompanies or usinesses




2

B2C('usiness*to*%onsumer)

'usiness that sellsproducts or pro"ides

ser"ices to consumers




2

C2C(%onsumer*to*

%onsumer)

+eople who cometo!ether to uy& sell or

trade items online$




2

'2%& process for

sellin! productsdirectly to consumers$

'2'& process for

sellin! products orser"ices to otherusinesses$



Payment Method on E-Commerce


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7oile %ommerce (m*commerce) refers totransactions conducted anywhere andanytime$

7*commerce relies on wirelesscommunication that mana!ers andcorporation use to place orders and conductusiness with handheld computers& portalephones& laptop computers connected to a

networ and other moile de"ices$


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Advantages of using E-Commerce


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Shoppin! can e faster and more con"enient$

8erin!s and prices can chan!e instantaneously

%all centers can e inte!rated with we sites$

'roadand telecommunication will enhancethe uyin! e,perience$



Disadvantages of using E-Commerce


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%ustomers cannot see or touch the actualproduct$

+roduct is not recei"ed in immediately

If there ha"e some prolem with the product&it must !o throu!h some procedure to return

it or to !et replacement or compensation$



E – Procurement


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*procurement (electronic procurement& sometimes also nown assupplier e,chan!e) is the '2' or '2% purchase and sale of supplies&wor& and ser"ices throu!h the Internet as well as other information

and networin! systems such as electronic datainterchan!e and enterprise resource plannin!



%omputeri#ed system that performs and records the daily

routine transactions necessary to conduct the usiness9these systems ser"e the operational le"el of theor!ani#ation$

Information system desi!ned to process routine usinesstransactions$

Sees time*e:ciency and cost*e:ciency y automatin!repetiti"e operations in lar!e "olumes$

$!$/ Airline reser"ation systems& order entry;processin!systems& an<s account processin! systems etc$

Transaction Processing System (TPS)


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=hat is T+S>




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Transaction Processing System Model

Data InputData Input Data ProcessingData Processing Output GenerationOutput Generation

Data StorageData Storage




3

On-line

Data

Processing

Documents/

Reports

Transaction

Data

Inquiries/

Reponses

TransactionData

Transaction

Data

Transaction Processing System Diagram



8rder +rocessin!

+urchasin!

Accounts .ecei"ales and Accounts+ayales

.ecei"in! and Shippin!

In"entory on -and

+ayroll

?eneral @ed!ers

Transaction Processing System (TPS)


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T+SApplication



%omputeri#ed dataase of information or!ani#ed and

pro!rammed in such a way that it produces re!ularreports on operations for e"ery le"el

of mana!ement in a company$ It is usually alsopossile to otain special reports from system easily$

Also or!ani#ed collection of people& procedures&software& dataase and hardware;de"ice thatpro"ide routine information to mana!ers and

decision maers$

Management Information System (MIS)


3

enition




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SS is computer pro!ram application that analy#esusiness data and presents it so that users canmae usiness decisions more easily$

It is informational application that collects data incourse of normal usiness operation$

Typical information that decision supportapplication mi!ht !ather and present would e/

%omparati"e sales !ures etween one wee and the ne,t$ +roBected re"enue !ures ased on new product sales

assumptions$

The conseCuences of dierent decision alternati"es& !i"en

past e,perience in a conte,t that is descried

Decision Support System (DSS)


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SS is interacti"e& user*friendly mana!ement*le"elcomputer system that comines data and sophisticatedanalytical models and tools to support9 rather it is apowerful tool that is used to support decision*main!$

The components of a SS are/ SS dataase/ collection of data from a numer of

applications or !roups

SS software system/ %ontains software tools that are usedfor analy#in! data& includin! 8@A+ tools& data*minin! tools&

or a collection of mathematical or analytical models$

Dser interface/ %ontrols the interaction etween the users ofthe system and the SS software tools$

Decision Support System (DSS)


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Components of DSS Diagram


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Example of DSS


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T9

System Development


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System de"elopment is acti"ity of creatin! ormodifyin! usiness systems$

Systems de"elopment proBects can ran!e fromsmall to "ery lar!e in elds as di"erse as stoc

analysis and "ideo !ame de"elopment$

+eople inside company can de"elop system orcompanies can use outsourcin!& hirin! an outsidecompany to perform some or all of a system

de"elopment$

e"elopin! information system to meet usinessneeds is hi!hly comple, and di:cult proBect$

Definition of Software Development


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Components in SDLC


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Steps involve in Software Development


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Issues Faces in Software Development

IT45013 Introduction to IT and4

UNIT 2 - Is in Perspective

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