Form Design Patterns

“Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a hieroglyph, and the blood of a virgin.”

You’ll notice the valid from date, which is often provided on a payment form is missing, so I spoke with Øyvind to find out why. Here’s what he said:
“We don’t need to ask for Valid From. Only a handful of debit cards show those, and it provides more hassle for the customer to enter than benefit to us in verifying card details. That is, if the card is stolen, having to enter a valid from date isn’t going to stop the thief.”
He went on to talk about the billing address, which is the address to which the card is registered:
“Only the numerics contained in card details are used for verification. That is, the house number is used, but not street name. We ask for it for our records. Being able to eyeball this stuff is handy in any situation where you have to query what’s happened. Besides, some people expect that they’ll have to provide an address (at least one which is used for both billing and shipping).”

Inclusive design principle 2, “Consider situation,” says:
“People use your interface in different situations. Make sure your interface delivers a valuable experience to people regardless of their circumstances.”