Adirenne Watt and Nelson Eng's Database Design: "Chapter 7: The Relational Data Model"

Review this chapter, which we looked at previously in Unit 2. The relational model uses tables for relations, table columns for attributes, and table rows for records. Some references may refer to the product of data analysis as a logical model. Here we refer to the product of data analysis as a conceptual model and the product of database design as a logical model. In either case, the database design model addresses how data is used. It is more detailed than the data analysis model, which is concerned with the meaning of the data and its structure.