> For the complete documentation index, see [llms.txt](https://docs.b2ihealthcare.com/snowray/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2ihealthcare.com/snowray/v2.11/reference/resources/access.md). # Access management Snowray provides different types of roles that define which user is allowed to see a specific resource or to perform certain actions. Roles are tied to resources, meaning that users can have different types of permissions to different resources. For example, a user might be able to maintain a resource but has only read access to others. {% hint style="info" %} Resources only appear for users who are granted *Read* access to them. {% endhint %} A more detailed description of user role permissions can be found below. ### User Roles and Permissions


	Reader	Writer	Maintainer	Owner
Browse	Browse shared resources	Browse shared resources	Browse shared resources	Browse shared resources
Export	Export shared resources in any format	Export shared resources in any format	Export shared resources in any format	Export shared resources in any format
Edit		Edit shared resource content	Edit shared resource metadata and content	Edit shared resource metadata and content
Release			Publish releases	Publish releases
Delete/ Retire			Delete or retire resources	Delete or retire resources
Share			Manage access of resources	Manage access of resources
Transfer				Transfer resource ownership

{% hint style="info" %} When having multiple roles through Organization or Bundle access, the role with the higher accessibility feature will always be the one taken into consideration when trying to access a resource. {% endhint %} Maintainers can share resources, edit user roles, and revoke access to resources after visiting the ***Sharing*** tab of the selected resource. More can be found on these topics under the following pages: {% content-ref url="/pages/-MjEhf9epLGp7erCI3FO" %} [Sharing Resources](/snowray/v2.11/reference/resources/access/sharing-resources.md) {% endcontent-ref %} {% content-ref url="/pages/-MjEhmMMNKFIFZo\_6wdk" %} [Change Roles](/snowray/v2.11/reference/resources/access/change-roles.md) {% endcontent-ref %} {% content-ref url="/pages/-MjEhshapSPo6dsAWsKZ" %} [Revoke Access](/snowray/v2.11/reference/resources/access/revoke-access.md) {% endcontent-ref %}