erd

Use when creating entity-relationship diagrams for database design and data modeling. Covers entity types, attributes, relationships, cardinality, Chen and Crow's Foot notation, normalization forms, and Mermaid ERD syntax. USE FOR: database schema design, data modeling, entity-relationship diagrams, cardinality and relationship mapping, normalization analysis, Mermaid ERD syntax, Chen notation, Crow's Foot notation, physical and logical data models DO NOT USE FOR: application architecture (use c4-diagrams or uml), behavioral modeling (use uml or functional-diagrams), general flowcharts (use mermaidjs)