---
title: Entity Relationship Library
slug: rm/entity-relationship-library
docTags: 
createdAt: 2026-06-09T13:38:48.684Z
---

| **Image**                                                                                                                                   | **Name**              | **Description**                                                  |
| ------------------------------------------------------------------------------------------------------------------------------------------- | --------------------- | ---------------------------------------------------------------- |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752904551/entity-table.png" alt caption width="75" height="96"}          | Entity Table          | Used to model an entity with multiple attributes in UML Diagrams |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752909034/entity.png" alt caption width="75" height="53"}                | Entity                | Chen's Notation Entity                                           |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752913204/weak-entity.png" alt caption width="75" height="53"}           | Weak Entity           | Chen's Notation Weak Entity                                      |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752916945/attribute.png" alt caption width="75" height="53"}             | Attribute             | Chen's Notation Attribute                                        |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752921130/multivalued-attribute.png" alt caption width="75" height="56"} | Multivalued Attribute | Chen's Notation Multivalued Attribute                            |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752924970/relationshi.png" alt caption width="75" height="56"}           | Relationship          | Chen's Notation Relationship                                     |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568752929233/weak-relationshi.png" alt caption width="75" height="53"}      | Weak Relationship     | Chen's Notation Weak Relationship                                |