SAP ABAP Program LIWO1O00 (Screen Module for Reference Object) is using

• Class (2)
• Table/Structure Field (38)
• Function Module (2)
• Message Number (1)
• Class Method (2)
• Table (4)

#	Object Type	Object Name	Object Description	Note
1	Table	RIHCLDA	Reporting display struct. for classif. characteristics
2	Table	RIHQMEL	Display structure reporting for QMEL
3	Table	RIWO1	I/O table SAPMIWO1 (object connection)
4	Table	SCREEN	Structure Description for the System Data Object SCREEN