The power of a search interface is in the tools available to help you search:
- the availabilty of a controlled vocabulary and the use of subject headings to describe and categorize content regardless of whether a particular keyword is used or not.
- field searching for specificity.
- the ability to combine terms in different ways, known as Boolean logic
- the availability of truncation and wildcard characters to help you find variant spellings of terms.
- the availabilty of limiters to help you refine your search