ST02 Operating system overview
Overall, the application layer is the link between the database layer on the one hand and the presentation layer on the other. Thus, the applications on the application layer request required data from the database in order to process it afterwards.
Finally, the presentation layer contains software components for the graphical presentation of the application. It thus forms the interface to the users (GUI).
SE51 Screen Painter
Significant changes have also been brought about by SAP's cloud strategy. For example, the latest products such as SAP HANA and SAP S/4HANA are available entirely as cloud solutions.
A first important step was the introduction of playbooks to professionalize our work. Back then, SAP installation manuals were real tomes with hundreds of pages that often went around in circles and were anything but easy to understand....
With "Shortcut for SAP Systems" a tool is available that greatly facilitates some tasks in the SAP basis.
System users: Users of this user group are comparable to SAP*. They act as administrator in the system.
SAP Basis refers to the administration of SAP system that includes activities like installation and configuration, load balancing, and performance of SAP applications running on Java stack and SAP ABAP. This includes the maintenance of different services related to database, operating system, application and web servers in SAP system landscape and stopping and starting the system. Here you can find some useful information about SAP Basis: www.sap-corner.de.
AUTO_MOD_SPAU This step checks whether modifications can be adjusted automatically.