In the Participant Tree section of the Participant Management view, which you can open from the Administration Perspective launch panel, you can view and edit associations between participants, roles, organizations and departments.
The Participant Management view displays the default tree hierarchy as it is created in the modeling phase. The user who has administrator rights can view the organizational structure.

Figure: Participant Tree
Note:
With each organization a default department is provided to which the user can also be assigned.
Red color square
at the top indicates scoped organization. Whereas blue color square
indicates the unscoped organization.
The Participant Tree toolbar consists of two options:
By default, these options are disabled. The options become enabled when you click them. Clicking on these options again turns them to Hide Models and Remove Highlighting, respectively.
In case you want to group participants below model node, click on the Show Models icon. The name of the model and top level organizations and roles get displayed. You can expand further to view the complete workflow of the model. In case you want to hide model, click the Hide Models icon again.

Figure: Participant Tree - Show Models
In case you want to find the users easily in the participant tree, click the Highlight Users icon. Then select the users you want to see in the participant tree. The selected users get displayed in different colors in the participant tree. In case you want to remove the highlighting, click the Remove Highlighting icon. Also note that when you perform the refresh operation on the page, the highlighting is not retained.

Figure: Participant Tree - Highlight Users
In the participant tree, you can create, modify and delete departments.
You can also create and assign users for the following:
To create a department:

Figure: Create Department Menu

Figure: Create department dialog box
to see the newly created department.
The newly created departments are now displayed in the tree:

Figure: Participant Tree Node - Created Department
To modify a department:

Figure: Modify Department Menu

Figure: Modify department dialog box
Note that to delete a department all activities should be completed under that department. If activities are not complete then you cannot delete the department.
To delete a department:

Figure: Delete department menu
You can create users for un-scoped organizations, implicitly scoped organizations, departments, roles and user groups from the context menu. For example, to create a user for an un-scoped organization do the following:

Figure: Un-scoped Organization - Create User
You can associate a user with a role, department or organization by dragging and dropping it from the All Users table to the Participant Tree.
You can associate the user with:
To associate a user:

Figure: Drag User

Figure: Drop User

Figure: User Association with Role
To remove the user association:

Figure: Remove User Association with Role
Please refer to section Modifying a User and Invalidating Users in chapter Creating and Editing User Accounts for details on how to modify or invalidate the user associated with the organization.
If cardinality is set for a role during modeling, there is maximum of users who can be assigned to this role. In case you try to assign a user to a role, which cardinality is already reached, the user can't be assigned and the following message is displayed:
Cannot assign more users to participant. Cardinality <cardinality> exceeded.
Please refer to the chapter Modeling the Organizational Structure of the Stardust Online Documentation - Modeling Guide section Cardinality of the chapter Modeling the Organizational Structure for information on how to set the cardinality for roles.
In case of any change in the role assignment of the logged-in user, you should logout and login again to apply the new authorizations. A message is displayed on top of the view to inform you of this necessary step.

Figure: Authorization changes alert
Note that once you closed this message, if you reopen the view and make further changes to the role assignment, no further message is displayed. It won't be shown again in the same session until you logout and login again.