Faceted Application of Subject Terminology
Faceted Application of Subject Terminology (FAST) is a general use controlled vocabulary based on the Library of Congress Subject Headings (LCSH). FAST is developed as a part of WorldCat by OCLC, Inc., with the goal of making subject cataloging less costly and easier to implement in online contexts.
Source: Wikipedia — Faceted Application of Subject Terminology (CC BY-SA 4.0)