---
title: Use Case Library
slug: rm/use-case-library
docTags: 
createdAt: 2026-06-09T13:38:48.711Z
---

| **Image**                                                                                                                      | **Name**                | **Description**                                        |
| ------------------------------------------------------------------------------------------------------------------------------ | ----------------------- | ------------------------------------------------------ |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568751478670/actor.png" alt caption width="75" height="114"}   | Actor                   | The activity that is to be performed.                  |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568751482360/use-case.png" alt caption width="75" height="58"} | Use Case                | A single use case                                      |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568751486027/extensio.png" alt caption width="75" height="49"} | Use Case with Extension | A single use case with an extension to other use cases |
| :inlineImage[]{src="https://files.helpdocs.io/4rdnduk17o/other/1568751490647/boundry.png" alt caption width="75" height="76"}  | Boundary                | Used to represent the system boundary of the Use case  |