If I've done my job, you're excited about the raw potential of XML now. You've seen how it can work to turn dumb documents into smart documentsdocuments with oomph. You should understand where some of my passion for these systems comes from. I've seen them work and work well. In the next chapter, we'll step back into the history of both XML and the relational database to provide a bit more context before moving forward with application design and development.