ERD Symbols and Meanings

Entity Relationship Diagram (ERD) is a popular software engineering tool for database modeling and illustration the logical structure of databases, which uses one of two notations - Chen's or Crow’s Foot. Crow's foot notation is effective when used in software engineering, information engineering, structured systems analysis and design. Each of these notations applies its own set of ERD symbols. Crow's foot diagrams use boxes to represent entities and lines between these boxes to show relationships. Varied shapes at the ends of lines depict the cardinality of a given relationship. Chen's ERD notation is more detailed way to represent entities and relationships. ConceptDraw DIAGRAM application enhanced with all-inclusive Entity-Relationship Diagram (ERD) solution allows design professional ER diagrams with Chen's or Crow’s Foot notation on your choice. It contains the full set of ready-to-use standardized ERD symbols and meanings helpful for quickly drawing, collection of predesigned ERD samples, examples and templates. ConceptDraw Pro is a great alternative to Visio for Mac users as it offers more features and can easily handle the most demanding professional needs.

Pyramid Chart Examples

Pyramid Charts and Triangle Diagrams are used to visually structure the topics and progressively order the quantitative data. They allow to illustrate hierarchical structure of the topics, proportional, interconnected and containment relations among the topics. The multilevel Pyramids and Triangle diagrams are constructed oriented up or down and divided into several horizontal slices. They are effectively used to represent marketing strategies, social strategies, information systems, market value, etc., to illustrate presentations, websites, documents, reports in business, finances, sales, management, marketing, media, training, consulting, and many other fields. To maximize the efficiency in drawing the Pyramid Charts, use the ConceptDraw DIAGRAM diagramming and vector drawing software extended with Pyramid Diagrams solution from Marketing area, which contains the set of Pyramid Chart examples, samples, templates and vector design elements of triangular diagrams and pyramids with different quantity of levels for various needs.