In order to manage a service application, the Farm Administrator or service application administrator will either administer through the Central Administration website or through PowerShell.
There is a Manage Service Applications page that lists all the services running on the farm that you have rights to manage. This will be clearly shown in the recipe you are about to follow.
Many services have their own administration page and in this recipe you will learn how to navigate to these and will be shown the functional processes that you can do from the ribbon. For our example, we are using the Managed Metadata Service.
You must have Farm Administrator privileges to the Central Administration website.