System modifiability and client control in an SAP system
Use digitally signed SAP hints by installing Note 2408073
SAP Basis ensures smooth operation of the SAP Basis system. The SAP Basis system is a kind of operating system of the R/3 system or SAP ERP. It includes three layers: database, application and presentation. In addition, Basis includes many SAP middleware programs and administration tools. With Basis SAP applications can be used compatible and independent of operating system and database and can be enriched with the necessary data.
For existing solutions, it is necessary to assess to what extent the solution is customised. A modification is the more serious the more time-consuming the maintenance is, including testing, e.g. in the case of upgrades. The fewer customer specifications are available, the more suitable a system or application is for external operation by a service form to be chosen.
OPERATOR (OP)
Database layer: The database layer contains a database server on which all the data of the SAP ERP system is managed. This includes the database management system (DBMS for short) and the actual dataset. The dataset includes user data and data tables as well as applications and system control tables.
Since jobs and backups should run at set times for organizational or technical reasons, automating them is a good idea. In simple, clear system environments, many SAP Basis administrators help themselves with SAP CPS (Central Process Scheduling) and simple ABAP batch jobs that start operations or other jobs. Since the desires and the system environments usually grow continuously, this approach becomes complex and confusing over time and troubleshooting often becomes difficult. As a result, maintainability often falls by the wayside and error-proneness can increase. If different jobs are strung together to form chains, further problems arise.
With "Shortcut for SAP Systems" a tool is available that greatly facilitates some tasks in the SAP basis.
For these cases, you should take a closer look at the DBACOCKPIT transaction.
The SAP Gateway, which is responsible for the connection between backend and frontend, is also a security risk and must be considered.