Design of E-commerce and checkout forms

If you're selling something on the web, then you'll inevitably come to a point where you're asking your customers to give you some specific details about how they want to pay and delivery,  whether electronically or to a street address.

Let's face it: there will be a form.

The principles we describe in our book apply to checkout forms, just like any other form:

• Understand your customers,
• Only ask what is completely necessary,
• Ask questions your users can answer,
• Make the form look easy,
• Test, and test again, with your actual customers.

Specific guidelines for e-commerce

Christian Holst published an excellent article on Smashing Magazine: Fundamental guidelines of e-commerce checkout design.