SAP GLOBAL INTERFACE GLOSRY documentation, setup help and example usage

ARTICLE

global interface
Interface that is visible in the whole AS ABAP . Global interfaces can be created with the Class Builder in the interface pool and are marked as such there using the PUBLIC addition of the statement
INTERFACE . An interface pool cannot contain anything except a global interface. All global interfaces of an AS ABAP are stored with the global classes and the data types of the ABAP Dictionary
in one namespace.