Jira manages its permissions in a hierarchical manner. Each level is more fine-grained than the one above it. For a user to gain access to a resource (for example, to view an issue), they need to satisfy all four levels of permission (if they are all set on the issue in question):

• Application access: This defines the groups that will have access to the various applications in Jira (for example, Jira Software)
• Global permission: This permission controls access rights functions, such as overall administration
• Project-level permission: This permission controls project-level permissions
• Issue-level security: This permission controls view access on a per-issue level

We will now look at each of the permission levels and how you can configure them to suit your requirements, starting from the most coarse-grained permission level—global permissions.