James F. Courtney and David B. Paradice's Database Systems for Management: "Chapter 3: Data Modeling" and "Chapter 4: A Framework for Database System Design"

In chapter 3, the three ANSI/SPARC schemas are presented as phases of database development: the requirements phase, the high-level design phase, the detailed design phase, and the implementation phase. These correspond to the external model, the internal model, and the physical model, respectively. This chapter also describes entity-relationship modeling as a means of representing a conceptual model.

Chapter 4 discusses conceptual modeling for hierarchical, network, and relational databases.