I am looking at the design of credit card entry forms. I have the option of validating the card number to determine the additional information fields on the form like start date and issue number.
Option 1 is to design the form to build as the user enters data ( not keen to do this)
Option 2 is to reduce the number of fields required dependent on the card number entered
Option 3 leave as is and get the customer to select their card type first.
Any thoughts, would this be disconcerting?
Is it a case that although we could do this we shouldn't?