A simple checkout prototype created in Axure RP Pro.
Please note: this article was not update for a long time. The information is still valid for the most, but you may want to check the new Online Axure Training course for a lot more detailed and up-to-date information.
I created a prototype which includes the backbone of an e-commerce login / register process. The notes also include some subtleties on how conditions can be used sequentially in Axure RP Pro. I did not focus on the layout and the interaction, but I recommend that you take a look at the way the transition from one page to the other takes place, and the differences between the logged in journey and the not logged in journey.Notes are included at the bottom, on a green background.