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    1. Templates
    2. Entity Relationship Diagram Template

    Diagram template

    Free Entity Relationship Diagram (ERD) Template

    An entity relationship diagram with User, Order, Product, and OrderItem entities already related, so you can model a data schema from a working starting point.

    Use this template in AtlasStart free
    • Diagram template
    • Free to use
    • Set up in Atlas

    Overview

    About the entity relationship diagram template

    An entity relationship diagram models the data behind an application. Each entity is a table of fields and the lines are relationships, so a schema is clear before any of it is built.

    This template is the built-in basic entity relationship diagram in the Atlas Diagram Studio gallery. It opens with User, Order, Product, and OrderItem entities showing their key fields and relationships.

    Because it is a live Diagram Studio document, you edit fields and relationships directly, so the model tracks the schema you are designing.

    What is included

    What is in the template

    • Core entities

      User, Order, Product, and OrderItem entities with their key fields listed.

    • Relationships

      Connectors showing places, has, and in relationships between the entities.

    • Join entity

      An OrderItem join entity that models the many-to-many between orders and products.

    • Field lists

      Each entity shows representative fields so the schema reads clearly.

    • Editable canvas

      Movable entities and editable relationships so the model matches your data.

    How to use it

    How to use the entity relationship diagram template in Atlas

    1. 1

      Open the diagram gallery

      Go to /diagrams/templates and pick the Entity relationship (basic) template.

    2. 2

      Rename the entities

      Replace the sample entities and fields with the tables in your schema.

    3. 3

      Model the relationships

      Edit the connectors so they reflect the real relationships between entities.

    4. 4

      Share or export

      Share the model or export it once the schema is complete.

    Related reading

    • Projects and CRM
    • The all-in-one work OS
    • Work OS glossary
    • All free templates

    FAQ

    Questions, answered.

    What is an entity relationship diagram?
    An ERD models a data schema as entities and the relationships between them, so tables, fields, and how they connect are clear before or during development.
    Does the template include a join table?
    Yes. The starter includes an OrderItem join entity that models the many-to-many relationship between orders and products, a common schema pattern.
    Can I model my own schema?
    Yes. The template is a live diagram, so you can rename entities, edit fields, and adjust relationships to match the schema you are designing.

    Ready when you are

    Put the entity relationship diagram template to work in Atlas.

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