
The order benefits from all the other qualities of XML. In particular, the
middle tier posts the order to the Emailaholic site, where it is automatically
parsed and loaded into a database.
Orders for XMLi are not posted to a Web site because XMLi has no Web
site. Instead, the orders are saved in files. To review its order, XMLi applies
a style sheet to them.
Again, the complete source code for this is in the next chapter. However, the
underlying idea is that XML is scalable: It works for Emailaholic, which
built a specialized server, but it also works for XMLi, which needs a simple,
browser-based tool.
XML on the Middle Tier
On the middle tier, XML is ...