- Data Flow Diagram (DFD) provides a visual representation of the flow of information (i.e. data) within a system. By drawing a Data Flow Diagram, you can tell the information provided by and delivered to someone who takes part in system processes, the information needed to complete the processes and the information needed to be stored and accessed.
- What is an Entity-Relationship Diagram (ERD)? ER Diagram is a graphical representation of a data model using entities, their attributes and relationships between those entities. It has a form of a diagram. Sample ER Diagram created with Dataedo
- The class diagram can be used to model the logical framework of the database, independent of it being objectoriented or relational, with classes representing tables, and class attributes representing columns. If a relational database is the chosen implementation medium, then the class diagram can be mapped to a logical ER diagram.
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