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Object-Role Modeling Workbook: Data Modeling Exercises using ORM and NORMA by Terry Halpin

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4    Modeling Exercises

This chapter includes several modeling exercises to consolidate your understanding of the ORM CSDP and further your practical experience with the NORMA tool for entering ORM schemas and mapping them to relational database schemas. Answers to all the exercises are provided in the Answers section at the back of the book.

4.1    Academic Conference

An information system is required to maintain details about academic events of two kinds (C = Conference, W = Workshop). An event that directly relies on another event that is a conference for its overall organization is said to be a satellite of that conference (which is called the host conference for the satellite event). Each event is chaired by at most three academics (the ...

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