SAP SYSTEM INTERFACE GLOSRY documentation, setup help and example usage

ARTICLE

System Interface
Interface of the
Class Library integrated into system classes . It is used to implement system functions in separate classes or is used as a tag interface . As a rule, the name begins with IF_ABAP_ or IF_SYSTEM_ . Use the
input help for IF_ABAP_* or IF_SYSTEM_* in Class Builder to display an overview of all system interfaces.