> Network Administration

>> Transport

>>> Change Controls

>> Batch (Create/Manage)

> Database Administration

>> Security

>>> User administrations

>>> Authorization / Role / Profiles

>> ABAP

>>> Troubleshoot and tuning performances and corrections (OSS) applications 

>> Data Dictionary Management

>> Operation System Administration

 

* User-System Requirements 

* Systems' Access Management

** SOD conflicts prior to discovery/audit.