The benefits of faceted classification can be summarized as follows:
- A term can be classified in multiple hierarchies (e.g. doll toys/visual works).
- It is independent of the context, within which each term appears, although the context is crucial for the classification of a term in facets.
- It is based only on a restricted number of fundamental concepts.
- It can be expanded and thus enables compatibility between different classification systems from different domains without imposing terms on the experts.
- It does not presuppose knowledge regarding the exact context of the terms.
- It helps users to discover concepts that are needed in searching or that enhance the logic of the concept hierarchy (e.g. train/bus station, harbour, airport=>traffic station)
Consequently the faceted classification system:
- Allows the designing of a consistent, stable and highly expressive set of fundamental concepts that will enable experts to find adequate generalizations.
- Ensures interoperability between the thesauri already developed in specific scientific.
- Facilitates users with their research inquiries.
- Helps us to avoid the methodological errors that will lead to inconsistencies and incompatibilities between the terms.
- Help us to achieve the greatest economy of effort in the process of organizing terms.
Faceted classification is useful in thesaurus construction because:
- it provides a tool for determining the relationships among concepts.
- It may be used as the systematic display in a thesaurus.
- facets may be added to terms in existing vocabularies, in order to further define the meaning and role of such terms
The Art and Architecture Thesaurus is an example of a thesaurus built using faceted classification. The facets the AAT have built are Agents, Objects, Materials, Styles and Periods, Activities, Physical Attributes and Associated Concepts.