a credit card walks into a bar... (cristiano betta)
TRANSCRIPT
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A Credit Card Walks into a Bar...
by Cristiano Betta
1
Developer Advocate @braintree_dev
A talk on credit cards in eCommerce
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Cristiano Betta
Developer Advocate Braintree_Dev.
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Cristiano Betta
Developer Advocate Braintree_Dev.
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Cristiano Betta
Developer Advocate Braintree_Dev.
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Cristiano Betta
Developer Advocate Braintree_Dev.
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I have a Cat
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Who has a “special” condition
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But he thinks he is the king of the house
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Actually he has a kidney condition
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People always want to see more photos and
videos
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so...
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I wrote an application that...
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charges people money to see his face
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I know what you are thinking...
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I am an a**hole
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I am actually raising money for his kidney
surgery
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I promise!
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A Credit Card Walks into a Bar...
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he says to the bartender,
“I’ve been having a hard time meeting people”
the bartender says:
“Wait, aren’t you supposed to be good at generating...”
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“interest”
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THANK YOU!
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I <3 U FOWD
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A Credit Card Walks into a Bar_
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Things people should not do when building a Credit Card Form
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Things I think you should not do when building a Credit Card Form
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baymard.com/lists/cart-abandonment-rate
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1.
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Add a CAPTCHA
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CAPTCHACompletely Automated Public Turing test
to tell Computers and Humans Apart
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CAPTCHACompletely Automated Public Turing test
to tell Computers and Humans Apart
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CAPTCHACompletely Automated Process
That Causes Headaches and Anger
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2.
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Ask users to register
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Ask users to register ...before purchasing
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A Credit Card Form Walks into a Bar...
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the bartender says,
“Why do you keep coming in here day after day ?”
The credit card form looks at him miserably says
“I’m just looking for some..."
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“validation”
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Don’t autodetect credit card type
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* totally copied from Wikipedia
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jquerycreditcardvalidator.com
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creditcardjs.com
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www.lukew.com/ff/entry.asp?1667
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www.lukew.com/ff/entry.asp?1667
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I <3 Braintree
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obviously...
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3.
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C.V.Who?
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jessepollak.github.io/card
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kenkeiter.com/skeuocard
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4.
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You don’t format dates as they are on my card
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5.
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5.
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A Credit Card Form Walks into a Bar...
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he tries to pick up someone at the bar,
They turn him down.
The credit card form looks at the bartender and says
“Well, this is awkward normally I’m
the one who..."
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“Declines”
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5.
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You don’t validate my card number inline
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Luhn Algorithm
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4217 6511 1111 1119
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4217 6511 1111 1119
9111 1111 1156 7124
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4217 6511 1111 1119
9111 1111 1156 7124
9212 1212 1213 7228
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14 + 6 + 11 + 19 = 50
4217 6511 1111 1119
9111 1111 1156 7124
9212 1212 1253 7228
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50 % 10 == 0 ?
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14 + 6 + 11 + 19 = 50
9111 1111 1156 7124
9212 1212 1253 7228
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6.
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6.
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5b.
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You don’t know your limits!
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Card! Number of Digits!
AMEX! 15!
Visa! 13 or 16!
MasterCard! 16!
Discover! 16!
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6.
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You don’t remember me
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7.
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You remember too many details!
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And then you lose them!
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2014
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2014Home Depot 56M
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2014Home Depot 56M JP Morgan Chase 76M
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2014Home Depot 56M JP Morgan Chase 76M Staples 1.6M
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Tokenization
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A Credit Card Form Walks into a Bar...
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the bartender says,
“You are new to this joint aren’t you?”
The credit card form looks at him and says
“Yeah, I just..."
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“Discovered it”
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8.
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You have a “reset” button
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9.
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Where was I again?
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One more joke?
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An American Express Walks into a Bar in Moscow...
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the bartender says,
“Sorry mate, You aren’t allowed in here without a...”
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“VISA”
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