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Pierre Dubois 1.1 1 == A document based model ==
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3 Probably the most important concept of the REQUEA platform is the concept of Entity.
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5 All data manipulated by applications (Users and Business Rules) is stored in entities. Entities provide:
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7 * the definition of the data manipulated (the entity 'definition')
8 * information on data types (such as dates, string, ...) used by the entire platform. For example, the User interface layer will render a calendar widget for a 'Date' type.
9 * relationship definitions for complex entity structures
10 * database or XML mapping information.
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12 == Properties ==
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