In this chapter, we discussed the different levels of modeling, with an example of each. In addition, we explored various types of data model, including the relational data model, the object data model, the hierarchical data model, the network data model, and the entity relational data model, and how they are used in real-life scenarios.
We explored various relational data models using CSV files, and we looked at the array data model.
In the next chapter, we will look at data model structures in detail.