Standard Air Pollution Classification Network: a Thesaurus of Terms

"The purpose of this thesaurus, is to present the special standardized terminology used for the storage of, and search for, information in the APTIG file. This second edition consists of this standardized terminology and illustrates the rules formulated for its use. The thesaurus should control the terminology and enable any inconsistencies to be resolved when indexers or searchers translate from the language of each document, or search request, into the conceptual system language presented here."

Subject headings for children's materials

"Subject cataloging, in principle, is the same in all types of libraries. Variations and adaptions are developed as these principles are applied to special collections or general collections for limited or specific patrons. This list of subject headings is intended for use wherever material for use by children from the elementary through the junior high school level is brought together in the public or school library.

GRIN Taxonomy for Plants

"The National Plant Germplasm System of the Agricultural Research Service, U.S. Department of Agriculture maintains a computer database, the Germplasm Resources Information Network (GRIN), for the management of and as a source of information on its 568,489 germplasm accessions. The taxonomic portion of GRIN provides the classification and nomenclature for these genetic resources and many other economic plants on a worldwide basis.

North American Product Classification System

"In February 1999, the statistical agencies of Canada, Mexico, and the United States launched a joint multi-phase initiative (...) to develop a comprehensive demand-oriented product classification system to complement the new supply-oriented industry classification system introduced in 1997. The industry classification system is known as the North American Industry Classification System (NAICS); the product classification is known as the North American Product Classification System (NAPCS).

Maternal and Child Health Thesaurus

"The purpose of developing this thesaurus is to provide the maternal and child health (MCH) professional community with a standard vocabulary in MCH program development and management, including health services, research, training, and program administration. The vocabulary focuses on public health; clinical medical terms such as the names of diseases and therapeutic procedures are excluded except when they are germane to public health or MCH.

Superintendent of Documents Classification System

"The U.S. Superintendent of Documents developed this system (also called SuDocs) for the arrangement of federal government publications. Arrangement is basically by issuing agency. The Documents Library uses this classification system. The Superintendent of Documents (SuDocs) classification system for publications generally groups together documents by issuing agency. SuDocs numbers consist of a letter, designating the particular issuing agency, followed by numbers identifying subordinate bureaus within the agencies and specific publications."


"The BIBFRAME Model is a conceptual/practical model that balances the needs of those recording detailed bibliographic description, the needs of those describing other cultural materials, and those who do not require such a detailed level of description. There are four high-level classes, or entitities, in the BIBFRAME Model: BIBFRAME Work; BIBFRAME Instance; BIBFRAME Authority; BIBFRAME Annotation.

Unified Astronomy Thesaurus

"The Unified Astronomy Thesaurus (UAT) is an open, interoperable and community-supported thesaurus which unifies the existing divergent and isolated Astronomy & Astrophysics thesauri into a single high-quality, freely-available open thesaurus formalizing astronomical concepts and their inter-relationships. The UAT builds upon the existing IAU Thesaurus with major contributions from the Astronomy portions of the thesauri developed by the Institute of Physics Publishing and the American Institute of Physics.

World Bank Group Topical Taxonomy

"The WBG Taxonomy is a classification schema which represents the concepts used to describe the World Bank Group’s topical knowledge domains and areas of expertise - expertise – the ‘what we do’ and ‘what we know’ aspect of the Bank’s work. The WBG Taxonomy provides an enterprise-wide, application-independent framework for describing all of the Bank’s areas of expertise and knowledge domains, current as well as historical, representing the language used by domain experts and domain novices, and Bank staff and Bank clients."