The SAP S/4HANA Cloud, public edition authorization concept is based on the concept of the SAP business role. By assigning business roles to each business user, you can control access to specific resources, applications (apps), and data. In this unit, we discuss business roles and the applications provided to manage them.
To review, the authorization concept can be broken down into the following elements:

A Business User is an employee, contractor, or other individual who needs access to SAP S/4HANA Cloud, public edition. Access to business functions is provided via specific SAP Fiori apps. A business role is assigned to a business user to provide access to business applications.
Business Catalogs are assigned to the business role. Administrators control write and read access by maintaining restrictions at the catalog level for the SAP Fiori apps, dashboards, and other data access assigned within the business catalog.
SAP delivers these Fiori Apps, best practice business processes, and scenario models to support every core function the system provides.
You can use the SAP Fiori Apps Reference Library provided by SAP to understand what apps are available and which delivered business roles and business catalogs reference specific apps.

The SAP Fiori Apps Reference Library is a comprehensive online repository that contains detailed information about every SAP Fiori app available by SAP product and version. It is designed to aid users, developers, and administrators by providing complete documentation of each app, including how to use and configure it, technical details and prerequisites for each app's use and deployment, and so on.
You can use the library to:
- Get key information for each app
- Find configuration information required to integrate apps into the SAP Fiori launchpad
- Review changes and updates from previous app versions
- Use installation and configuration information for specific apps
- Link together key SAP resources and documentation.

You can also use this library to find the predefined business roles and business catalogs that SAP has provided to aid customer implementations. Specifically, the Implementation Information outlines technical details and prerequisites for each app's use and deployment, along with any business catalogs and business roles that SAP has delivered.