Keywords are one or more words (or a phrase) that describe the main ideas of your research topic.
Advantages/Disadvantages
Look for word(s) anywhere in the document
Do not require specialized, technical language
More flexible for searching - can combine terms in various ways
Usually generate larger number of results than a subject search
Often yield many irrelevant results
Do not take into account the meaning of the words, so if a word has multiple meanings (e.g. mouse), irrelevant results may show up
Ask yourself three questions:
What is my topic?
What are the key aspects of this topic?
What are alternate keywords for each aspect?
Brainstorm keywords to use in your search. Pick words that represent each key aspect of your topic. This can be challenging. The same idea can be expressed in many ways. To ensure best results when searching, brainstorm several keywords whenever possible.
Subject Headings are a standardized set of words used to identify what something is about (aka the subject of the content).
Advantages/Disadvantages
A TITLE search allows you to find books, journals, magazines, newspapers, government publications, videos and any other type of library material by title.