SAP ABAP Data Element DATA_TYPE (datatype of the column) is used by

• Class (2)
• Function Module (3)
• Interface (1)
• Table (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_SALV_GUI_LAYOUT_IDA	Personalizable Layout for IDA ALV	SALV_IDA_IMPL	SAP_UI_ROOT	SAP_UI
2	Class	CL_WER_METHOD_CALL_CTRL	Method call controller	WER_BUSINESS	APPL	SAP_APPL