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The World of DataConceptual Data ModelingWork on Conceptual Data Modelling began in the early 1970’s and has been practiced by a small community ever since. It focuses on ‘concepts’ and the ways they are connected to state facts (OBC Topic 4), as well as a strong generalization / specialization definition (OBC Topic 3). There are tools that can turn English fact statements into a Conceptual Data Model and then generate a well-formed relational data model. Conceptual Data Modeling is built on Predicate Calculus and supports a rich set of static Business Rules (OBC Topic 6) at the conceptual level. Conceptual Query theory and tools add to the possibilities for practical solutions for Zachman Row 2 Col 1 models. |
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