# Hierarchy

In ZenML Pro, there is a slightly different entity hierarchy as compared to the open-source ZenML\
framework. This document walks you through the key differences and new concepts that are only available for Pro users.

![Image showing the entity hierarchy in ZenML Pro](/files/KESEKxf3fHmN144fJmHz)

{% hint style="info" %}
s**Note**: Workspaces were previously called "Tenants" in earlier versions of ZenML Pro. We've updated the terminology to better reflect their role in organizing MLOps resources.
{% endhint %}

The image above shows the hierarchy of concepts in ZenML Pro.

* At the top level is your [**Organization**](/pro/core-concepts/organization.md). An organization is a collection of users, teams, and workspaces.
* Each [**Workspace**](/pro/core-concepts/workspaces.md) (formerly `tenant`) is an isolated deployment of a ZenML server (with some pro features). It contains multiple projects and their resources.
* Each [**Project**](/pro/core-concepts/projects.md) is a logical subdivision within a workspace that provides isolation for MLOps resources like pipelines, artifacts, and models. Projects have their own roles and access controls.
* [**Teams**](/pro/core-concepts/teams.md) are groups of users within an organization. They help in organizing users and managing access to resources at organization, workspace, and project levels.
* **Users** are single individual accounts on a ZenML Pro instance.
* [**Roles**](/pro/access-management/roles.md) exist at organization, workspace, and project levels to control what actions users can perform.

More details about each of these concepts are available in their linked pages below:

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Organizations</strong></td><td>Learn about managing organizations in ZenML Pro.</td><td><a href="/pages/D6ibVLHAd4HlNMwV5H4z">/pages/D6ibVLHAd4HlNMwV5H4z</a></td><td><a href="/files/8Hf3F5169p9lFamgkUcu">/files/8Hf3F5169p9lFamgkUcu</a></td></tr><tr><td><strong>Workspaces</strong></td><td>Understand how to work with workspaces in ZenML Pro.</td><td><a href="/pages/J3d65KYDKudNpt4IXtdg">/pages/J3d65KYDKudNpt4IXtdg</a></td><td><a href="/files/9QMXgG1V4gSgMt5fxcaA">/files/9QMXgG1V4gSgMt5fxcaA</a></td></tr><tr><td><strong>Projects</strong></td><td>Learn about managing projects and their resources.</td><td><a href="/pages/zr3Za7cF7HKx0Vj5iMoS">/pages/zr3Za7cF7HKx0Vj5iMoS</a></td><td><a href="/files/95S100CyuICyiWsXDYcN">/files/95S100CyuICyiWsXDYcN</a></td></tr><tr><td><strong>Teams</strong></td><td>Explore team management in ZenML Pro.</td><td><a href="/pages/8uz2ocz1oApQ4F9Lutac">/pages/8uz2ocz1oApQ4F9Lutac</a></td><td><a href="/files/A51zwIWUDh7q2uHkbje8">/files/A51zwIWUDh7q2uHkbje8</a></td></tr><tr><td><strong>Roles &#x26; Permissions</strong></td><td>Learn about role-based access control in ZenML Pro.</td><td><a href="/pages/7DizWfU9fJ8MVlowvNlT">/pages/7DizWfU9fJ8MVlowvNlT</a></td><td><a href="/files/fjP8J3kZVWzpXV0hfjwx">/files/fjP8J3kZVWzpXV0hfjwx</a></td></tr></tbody></table>

<figure><img src="https://static.scarf.sh/a.png?x-pxid=f0b4f458-0a54-4fcd-aa95-d5ee424815bc" alt="ZenML Scarf"><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.zenml.io/pro/core-concepts/hierarchy.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.