In this chapter, you learned how to break down customer requirements by determining what needs to come out of the proposed application. From this breakdown, you were able to deduce what needs to go into the application by way of form submissions, data obtained from web service calls, and so on. Finally, you were given guidance on how to determine what needs to be stored.

The next section showed you how to create MongoDB document structures in JSON format after analyzing the needs of Sweets Complete Inc. From there, you went on to learn how to convert the JSON documents into Python classes. In each case, the Python entity classes included a sample demo script showing you how the entity class can be used. In addition, you were shown how to develop an appropriate unit test for the new class.

In the next chapter, you will learn how to apply your Python knowledge to the task of performing critical database tasks, such as adding, editing, and deleting documents, as well as basic queries...