|Create a Search Strategy
Connectors (Boolean operators) are used in keyword
searches to link together two or more terms. The most
commonly-used connectors are: AND and OR.
|AND narrows a search; you get
fewer records, because both
concepts must be present in the
records found--here the area in
blue. Use AND to combine
different concepts in one search.
|OR broadens a search; you get more
records because OR includes each of the
concepts separately, as well as both
concepts when found together. OR is often
used to link together related concepts.
|computer AND history AND
|computer OR history OR
|Click this link for a demonstration of how Boolean operators work:
|Page 6 of 9