Entity Relationship Diagram Symbols
Creating an entity-relationship (ER) model is to visually represent the structure of a business database, where data equates to entities (or objects) that are linked by defined relationships expressing dependencies and requirements. By nature it is an abstract visualization, the first step in the design process towards creating a logical and functional database.ERD symbols used for professional ERD drawing are collected in libraries from the Entity-Relationship Diagram (ERD) solution for ConceptDraw DIAGRAM.
Diagramming Software for UML Composite Structure Diagrams
UML Composite Structure Diagram shows the internal structure of a class and the possible interactions at this structure.Example of DFD for Online Store (Data Flow Diagram)
Data flow diagrams (DFDs) reveal relationships among and between the various components in a program or system. DFDs are an important technique for modeling a system’s high-level detail by showing how input data is transformed to output results through a sequence of functional transformations.Example of DFD for Online Store shows the Data Flow Diagram for online store and interactions between the Visitors, Customers and Sellers, as well as Website Information and User databases.
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ConceptDraw DIAGRAM is a world-class diagramming platform that lets you display, communicate, and present dynamically. It′s powerful enough to draw everything from basic flowcharts to complex engineering schematics.- Interior Design Office Layout Plan Design Element | Er Diagram For ...
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