An Agile project is aimed at developing an e-commerce website that will allow registered users to purchase digital books. During the checkout process, only credit card payments, with supported credit card types, will be accepted.

Consider the following acceptance criterion for a given user story of this Agile project:

"Check that the number of steps required to complete a purchase order during the checkout process is minimized, in order to reduce the risk that the customers will leave the website without completing their orders."

Which of the following information would you expect to be the most relevant to create a test aimed at covering this acceptance criterion?