Terminology-H

Terminology… H

Heading Flip

A heading flip is a bibliographic heading that matches a 4XX See From tracing in an LC authority record during automated authority control. When this match occurs the automated process would convert (flip) to the authorized form from the authority records 1XX field. (mpg)

Hierarchy

A hierarchy is an arrangement of objects, people, elements, values, grades, orders, classes, etc., in a ranked or graduated series. Items in a hierarchy are typically thought of as being "above," "below," or "at the same level as" one another. (wp) In the MARC structure a hierarchy refers to the structure of a bibliographic or authority heading. The main subfield ($a) defines the heading while the following hierarchal subfields, ($b-z etc) narrow the scope and definition of the heading. (ac, mpg)