payment card for dummies

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.

Welcome toSystem Design and Development ContestWeb Application Development Track

Rafiqunnabi Nayan

6 May 2015

Copyright 1999-2013 Kona I Co., Ltd All Rights Reserved.ⓒ

CONTENTS

II

Judging CriteriaIII

IV QA

Topics to Study

I Problem Domain

Problem Domain


What is this?

Smart Card

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• Payment Cards• Discount Cards• ID Cards• Others


How do we get it?

Various organizations may issue Smart Cards. Most common issuer of payment cards are Banks.

Issuer Bank

Other Organizations

o As part of Bank Accounto Credit Card Service

o Financial Institutionso Restaurants, Stores as discount cardo National ID e.g NID of Thailand

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Where do we use it?


Where do we use it?

ATM Booth

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Where do we use it?

Point of Service Terminal

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Where do we use it?

Online Payments

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Card Information

Each Smart Card contains some information either in the Magnetic Stripe or in the EMV Chip.

Card Data Elements

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• Primary Account Number (PAN)• Expiry Date• Card Holder Name• CVC/CVV


Types of Cards

Two most commonly used cards are issued by Banks.

Debit Card

Credit Card

o As like pre-paid phoneso Maximum allowed amount is equal to account balance

o As like post-paid phoneso Each card has a credit limito Maximum allowed amount to expense is equal to credit limit

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Card Technologies

Most commonly used cards are of two types

Magnetic Stripe

EMV

o No electronic chipo Unsecured

o Electronic chip embeddedo More secured

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Payment Networks

Responsible for performing inter bank communications

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• VISA• MasterCard• Discover• JCB

Most Common Networks


Transaction Flow

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Simplified Responsibility of Components


Merchant

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• Opens account with Acquirer Bank• Installs POS Terminal


Acquiring Bank

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• Detects the card type e.g Visa, MasterCard, American Express etc• Forwards the request to corresponding Payment Network e.g Visa,

MasterCard network• After receiving successful message from Payment Network, per-

forms a transaction in Merchant’s account


Payment Networks

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• Detects the Card issuer from the PAN• Verifies the request data format • Forwards the request to the Card Issuer Bank


Issuer Bank

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• Receives transaction request from Payment Network• Verifies the card validity and transaction eligibility• Processes the transaction• Sends response back to Payment Network


Considerations

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• High Security• High Availability• Transaction Time• Usability


Rafiqunnabi NayanCSE(06), BUETEngineer - R&DKONA Software Lab Ltd.

https://bd.linkedin.com/in/rafiqnayan

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About Me




QA

22

payment card for dummies

Technology

kona software lab

debit card credit card

card issuer bank

organizations o

card information

card technologies

account balance o

discount card o national