SAP ABAP PINF USMD1 (USMD1) is using

• Class (4)
• Data Element (45)
• Function Module (1)
• Interface (7)
• Table (25)

#	Object Type	Object Name	Object Description	Note
1	Table	USMD0016	Prefix for Temporary Keys
2	Table	USMD001C	Data Model: Check Table
3	Table	USMD001T	Data Model: Text Table
4	Table	USMD0020	Data Model: Entity Types
5	Table	USMD0020T	Data Model: Entity Types, Descriptive Text
6	Table	USMD004M	Assignment of SMT Mappings to Entity Types
7	Table	USMD020C	Edition
8	Table	USMD020T	Edition
9	Table	USMD_SX_DATA_UPDATE_EVENT	Notification When Changing Master Data
10	Table	USMD_S_ATTR	Attributes (Resolved)
11	Table	USMD_S_CDCHANGENR	Change Number
12	Table	USMD_S_CHANGE_DOCUMENT	Change Numbers in Active Area
13	Table	USMD_S_CHANGE_DOCUMENT_CHANGE	Change Documents: Change
14	Table	USMD_S_CHANGE_DOCUMENT_VALUE	Change Documents: Changed Values
15	Table	USMD_S_ENTITY_MESSAGE	Messages for Entity Types
16	Table	USMD_S_MAP_CD	Change Document for Active Area
17	Table	USMD_S_MAP_STRUC	Structure for Mapping Long Field Names
18	Table	USMD_S_MSG_KEY	Messages
19	Table	USMD_S_OTC_ENTITY_TYPE	Entity Types of an Object Type Code
20	Table	USMD_S_PP_FIELD_MAPPING	Mapping by Field Names
21	Table	USMD_S_SMT_MAP	SMT Mapping from USMD004M
22	Table	USMD_S_USMD0020	Data of an Entity Type
23	Table	USMD_S_USMD0022	Data of an Attribute
24	Table	USMD_S_USMD0023	Data of a Relationship
25	Table	USMD_S_USMD0050	Business Object Type for Entity Types