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First, the quantities was confusing to some users, even after our redesign. One thing that we should think about is having an explicit, table-like “Qty.” column instead of the “x”. In addition, instead of having a text box for the user to input a quantity, we should think about of just having a "" and "" plus and minus button. The "" button plus button appears on the “Menu” column on the page and the “” button appears on the “Your Order” column. If users want to order multiple items, they just tap the "" the desired number of times. If they want to remove items from their order, they tap the "" button which decrements the quantity. When the quantity get to 0, the item is removed. The nice thing about this, is that there are no more "x"s in the UI. The downside to this is that the U is that users users may "overshoot" their desired quantities. However, our guess is that people are not going to be ordering large quantities of good so error prevention is likely not that big of a deal in the common case. Additionally, having easy to click "" and "-" button is certainly more efficient for smaller quantities than clicking in a text box, moving your hand from your mouse to your keyboard, typing the number, hitting enter, and moving back to your mouse.
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