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The physical layout of data. Data fields, memo fields, fixed length fields, variable length fields, records, word processing documents, spreadsheets, data files, database tables and indexes are ...
A data element is defined by size (in characters) and type (alphanumeric, numeric only, true/false, date, etc.). A specific set of values or range of values may also be part of the definition.
Abstract: Database management system (DBMS) support for expert system knowledge bases requires data-modeling tools matching system needs. To assess its power and fit for this application, the authors ...
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