Thursday 18 July 2013

Boolean Operators (Information Literacy)



Selecting keyword helps us to search our research topics and it gives us more flexibility when searching different types of databases, catalogs, etc.
Keyword and Subject Heading usually give us more specific resources on our topics. It helps us in searching.
Subject heading can be any word, two word, city, person or anything.

Brain Storming for search terms:
Examples of Subject heading are :


  1. Library Subject heading
  2. Science Subject headings
  3. Thesaurus of Psychological Index terms
In the last session of week fifth she told us about Boolean operators.

Boolean Operators:
(named for George Boole, 1815-1864, a mathematician) - combining terms such as AND, OR, and NOT used in building a search statement or in putting several sets together.



  • Boolean Operators help us to connect a search that may add or subtract a concept to your search.
  • It helps us to expand the search.
  • Most of the search engines on World Wide Web allows you to use some form of Boolean searching.
  • Example : AND, OR and NOT 




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