Attribute allocation diagram - Assignment relationships

Source object type

Relationship type (active)

Relationship type (passive)

Target object type

Possible number of connections

Attribute (8) (OT_ATTR)

is describing for

is described by (78) (CT_IS_DESC_FOR_1)

Relation (51) (OT_REL)

Unique

Attribute (8) (OT_ATTR)

is foreign key for

has foreign key (79) (CT_IS_FRGN_KEY_FOR_1)

Relation (51) (OT_REL)

Unique

Attribute (8) (OT_ATTR)

is primary key for

has primary key (80) (CT_IS_PRIM_KEY_FOR_1)

Relation (51) (OT_REL)

Unique