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Data Modeling Made Simple with ER/Studio Data Architect by Steve Hoberman

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An attribute is an elementary piece of information of importance to the business, which identifies, describes, or measures instances of an entity. The attribute Claim Number identifies each claim. The attribute Student Last Name describes the last name of each student. The attribute Gross Sales Amount measures the monetary value of a transaction.

Returning to our spreadsheet analogy from Chapter 4, Entities, the column headings on a spreadsheet are attributes. The cells beneath each column heading are the values for that column heading. Attributes can be thought of as the column headings in a spreadsheet, the fields on a form, or the labels on a report. Author Last Name and Title ISBN are examples of attributes from our ...

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