Phew, we made it. How do you think we did? Do you think the improvements were worth the effort? Let's see.

To see how far we have come, we should first recap where we started.

In Chapter 4, Introduction to the ACME Registration Service, we had a small, simple, working service. It got the job done for our users, but it created many inconveniences for those of us that had to maintain and extend it.