The identity applications give you a convenient way to display and work with your identity information. They also enable your organization to be more responsive by giving you access to the information about other users that you need whenever you need it. For example, you might want to:
Manage your own user account directly
Look up other users and groups in the organization on demand
Visualize how those users and groups are related
List applications with which you are associated
Your system administrator is responsible for setting up the contents of the identity applications for you and the others in your organization. What you can see and do is typically determined by your job requirements and your level of authority.