SUMMARY

This chapter has taken a detailed look at the development of databases. First the database concept and the three level schema architecture were introduced. Having taken a brief look at the overall database-development process, we then looked in more detail at the information requirements analysis phase. We saw examples of top-down development of a conceptual data model and the bottom-up relational data analysis process. Finally we looked at the way that a conceptual data model is translated into a physical database design.