Payment card for dummies

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Rafiqunnabi Nayan

A very simplified introduction to payment cards.

Technologie

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Welcome to
System Design and Development Contest
Web 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

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
What is this?
Smart Card
4
• Payment Cards
• Discount Cards
• ID Cards
• Others

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
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 Account
o Credit Card Service
o Financial Institutions
o Restaurants, Stores as discount card
o National ID e.g NID of Thailand
5

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Where do we use it?

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Where do we use it?
ATM Booth
7

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Where do we use it?
Point of Service Terminal
8

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Where do we use it?
Online Payments
9

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Card Information
Each Smart Card contains some information either in the Magnetic Stripe or in the EMV Chip.
Card Data Elements
10
• Primary Account Number (PAN)
• Expiry Date
• Card Holder Name
• CVC/CVV

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Types of Cards
Two most commonly used cards are issued by Banks.
Debit Card
Credit Card
o As like pre-paid phones
o Maximum allowed amount is equal to account balance
o As like post-paid phones
o Each card has a credit limit
o Maximum allowed amount to expense is equal to credit limit
11

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Card Technologies
Most commonly used cards are of two types
Magnetic Stripe
EMV
o No electronic chip
o Unsecured
o Electronic chip embedded
o More secured
12

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Payment Networks
Responsible for performing inter bank communications
13
• VISA
• MasterCard
• Discover
• JCB
Most Common Networks

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Transaction Flow
14

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Simplified Responsibility of Components

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Merchant
16
• Opens account with Acquirer Bank
• Installs POS Terminal

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Acquiring Bank
17
• Detects the card type e.g Visa, MasterCard, American Express etc
• Forwards the request to corresponding Payment Network e.g Visa, MasterCar
d network
• After receiving successful message from Payment Network, performs a transa
ction in Merchant’s account

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Payment Networks
18
• Detects the Card issuer from the PAN
• Verifies the request data format
• Forwards the request to the Card Issuer Bank

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Issuer Bank
19
• Receives transaction request from Payment Network
• Verifies the card validity and transaction eligibility
• Processes the transaction
• Sends response back to Payment Network

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Considerations
20
• High Security
• High Availability
• Transaction Time
• Usability

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
Rafiqunnabi Nayan
CSE(06), BUET
Engineer - R&D
KONA Software Lab Ltd.
https://bd.linkedin.com/in/rafiqnayan
21
About Me

Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved.
QA
22

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Payment card for dummies

3. Problem Domain

5. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. 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 Account o Credit Card Service o Financial Institutions o Restaurants, Stores as discount card o National ID e.g NID of Thailand 5

10. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. Card Information Each Smart Card contains some information either in the Magnetic Stripe or in the EMV Chip. Card Data Elements 10 • Primary Account Number (PAN) • Expiry Date • Card Holder Name • CVC/CVV

11. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. Types of Cards Two most commonly used cards are issued by Banks. Debit Card Credit Card o As like pre-paid phones o Maximum allowed amount is equal to account balance o As like post-paid phones o Each card has a credit limit o Maximum allowed amount to expense is equal to credit limit 11

12. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. Card Technologies Most commonly used cards are of two types Magnetic Stripe EMV o No electronic chip o Unsecured o Electronic chip embedded o More secured 12

17. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. Acquiring Bank 17 • Detects the card type e.g Visa, MasterCard, American Express etc • Forwards the request to corresponding Payment Network e.g Visa, MasterCar d network • After receiving successful message from Payment Network, performs a transa ction in Merchant’s account

18. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. Payment Networks 18 • Detects the Card issuer from the PAN • Verifies the request data format • Forwards the request to the Card Issuer Bank

19. Copyright © 2015 Kona Software Lab Ltd. All Rights Reserved. Issuer Bank 19 • Receives transaction request from Payment Network • Verifies the card validity and transaction eligibility • Processes the transaction • Sends response back to Payment Network

Payment card for dummies

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