Entity,Relationship & Attributes

Interactive ER Diagrams

Master Entity-Relationship modeling with visual tools and real-time validation

ER Diagram Designer

Select a tool and click to start creating your ER diagram

Use Entity tool to create entities, Relationship tool for relationships, and Connect tool to link them

Interactive Scenarios

Choose a scenario to practice:

ER Diagram Quiz

What does a diamond shape represent in an ER diagram?
  • A) Entity
  • B) Attribute
  • C) Relationship
  • D) Primary Key

ER Diagram Legend

E
Entity (Rectangle)
R
Relationship (Diamond)
Primary Key
Foreign Key
Regular Attribute

Properties

Select an element to view its properties

zF4 Types

  • 1:1 - One to One
  • 1:M - One to Many
  • M:N - Many to Many
Click on relationships to set zF4

Diagram Stats

0
Entities
0
relationships
0
Connections

Quick Actions