Summary_Ch05 - Week 3 Chapter 5 Summary You will now hear a...

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© 2008, Laureate Higher Education Group, Inc. - 1 - Week 3 Chapter 5 Summary You will now hear a summary of Chapter 5. This is a summary of Chapter 5 from the textbook Introduction to Information Systems written by O’Brien and Marakas and published by McGraw-Hill/Irwin Publishers. The title of the chapter is Data Resource Management. This chapter defines the data concepts that are the foundation data resource management. As you read the Real World Case 1 about how Amazon, eBay, and Google are opening their databases to others, consider whether you agree or disagree with this approach, and why. Chapter 5 details several types of database structures: hierarchical, network, relational, object- oriented, and multidimensional. In the hierarchical structure, data follows a tree-like arrangement and all relationships are one-to-many. The network structure can reflect many-to-many relationships. The relational structure, which arranges data in tables, is currently the most commonly used. A row of a table represents a record, and a column represents a particular data field. It is possible to build relationships with data in two different tables that have a data element in common. Be sure to read about the operations that a relational database can perform. The
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Summary_Ch05 - Week 3 Chapter 5 Summary You will now hear a...

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