> ## Documentation Index
> Fetch the complete documentation index at: https://docs.conductor.is/llms.txt
> Use this file to discover all available pages before exploring further.

# Terminology

> The key concepts you should know to use Conductor.

Familiarize yourself with the terms below that we use throughout the documentation and APIs.

| Term | Definition |
| - | - |
| [end-user](/api-ref/end-users/object) | A user of *your* application for whom you will connect integrations through Conductor. Each end-user can represent an individual or an entire company/organization of multiple users within your application. |
| Integration | A third-party service you want to connect to your application. For example, QuickBooks Desktop. |
| [Auth session](/api-ref/auth-sessions/object) | An authentication session with a secure link to share with your end-user to connect their QuickBooks Desktop instance to your Conductor account. |
| [Authentication flow](/usage/auth-flow) | The UI walkthrough that guides your users through securely connecting their QuickBooks Desktop to your Conductor account. |


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