Controlled Vocabulary

I think that I should first start with definition of controlled vocabulary which is organized lists of words and phrases, or notation systems, that are used to initially tag content, and then to find it through navigation or search. Therefore, by controlled vocabulary we can organize and label our information. Controlled vocabulary could speed up our research and give us more results to use, so we don’t need to research again with different words.

If we think about the word “car” how we can research about it. Probably vehicle is the controlled vocabulary for car, or it could be motor. The related terms for car are trucks, or any automobiles including their technology (http://getwords.com/unit/100/ip:1). The broader terms are motorcar, automobile, and vehicle. Moreover, narrow terms might be sedan and coupe. The UF for car could be wheels and auto.