In this chapter, you have learned what data modeling is and the three stages of data modeling—conceptual data modeling, logical data modeling, and physical data modeling, as well as the deliverable of each stage.

You also learned the goals of performing data modeling, and how to do conceptual data modeling and logical data modeling using ER diagrams. You also learned how to create a physical data model for MySQL using MySQL Workbench, and you have seen the MongoDB script that is used to define scheme rules.

In the next chapter, we will discuss the code design of the application.