This chapter showed you an example of the process of designing a schema from scratch, in order to solve a real-life problem. We began with a detailed problem and its requirements and evolved the schema design to have better use of available resources. The sample code based on the problem is very simple, but will serve as a basis for your life-long learning. Great!

In this last chapter, we had the opportunity to make, in just a few pages, a journey back to the first chapters of this book and apply the concepts that were introduced along the way. But, as you must have realized by now, MongoDB is a young, full of database that is full of possibilities. Its adoption by the community around it—and that includes your own—gets bigger with each new release. Thus, if you find yourself faced with a new challenge that you realize that has more than one single solution, carry out any test deem necessary or useful. Colleagues can also help, so talk to them. And always keep in mind that a good design is the one that fits your needs.