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Object-Role Modeling Fundamentals by Terry Halpin

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Overview of Object-Role Modeling

Information Modeling

This book discusses how to model the information requirements for any business domain in a way that can be easily understood by the business users, and automatically generate a database structure to store that information. Although information models are commonly called data models, information adds semantics or meaning to the data, which may be just a bunch of numbers or character strings. For example, consider the data in the table extract shown in Figure 1.1(a). As un-interpreted syntax, this could be assigned infinitely many possible meanings. For instance, x and y might denote boxes of 10 and 100 pencils, or line segments of length 10 cm and 100 cm, or robots of mass 10 and 100 kg, etc. ...

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