Chapter 3 DATA RELATION DIAGRAMS
A picture is worth 1000 words!
Data relation diagrams are pictures of the data resource that provide a visual understanding of the overall architecture and meaning of the data in an organization’s data resource. The presentation of Data Resource Data begins with data relation diagrams. However, not all the Data Resource Data detail is shown on the data relation diagrams. Additional details are shown in subsequent chapters on Data Characteristic Structure, Data Definitions, Data Reference Sets, and Data Integrity Rules.
A data relation diagram shows the arrangement of and relationships between data subjects or between data files. A data subject-relation diagram shows the arrangement of and relationships between ...