A method of searching for information in databases that combines search terms with the operators AND, OR, NOT, and parentheses. See a fuller explanation in our file, What is Boolean Searching?

a search that allows the user to enter logical expressions including AND, OR, and NOT. This is a common advanced search feature because of its ability to specify desired results very precisely. Howeve [..]

A type of search relying on Boolean logic. Boolean searching allows users to combine words and phrases into more precise search statements. Typical Boolean operators include AND, NOT, and OR; when use [..]

A type of search allowing users to combine keywords with operators such as AND, NOT and OR to further produce more relevant results. For example, a Boolean search could be "hotel" AND " [..]

Mathematical operators that users can add to searches in order to further specify intent or unique parameters.

Many search engines allow you to perform searches that contain mathematical formulas such as AND, OR, or NOT. By default most search engines include AND with your query, requiring results to be releva [..]

A search formed by joining simple terms with 'and', 'or' and 'not' for the purpose of limiting or qualifying the search.

A keyword search that uses Boolean Operators for obtaining a precise definition of a query.

The process of identifying an asset on true or false (binary) basis. For a yes answer, a user's request term is the same as an index term associated with the asset being examined.

The term "Boolean" refers to a system of logic developed by an early computer pioneer, George Boole. In Boolean searching, an "and" operator between two words results in a search for documents containing both of the words. An "or" operator between two words creates a search for documents containing either of the target [..]