
Simplifications
XCommerce is representative of a real Web mall. However, because this is a
book about XML, I have made a few simplifications. These simplifications
are not related to the use of XML in any way:
• There is no provision for payments. Processing payments typically
requires credit card processing and a merchant account and is clearly
outside the scope of this book.
• The buyer cannot shop for more than one product at a time. This
saves writing a shopping cart (a small database that stores the items
bought so far).
• Presentation is minimalist. You would want to include more graphics
and better layout in a real shop.
Additionally, security ...