Science databases can be searched using logical terms that will directly correlate to the title of a useful article. This is because scientific titles are very specific to the research published in the article. Articles relating to the Humanities are characteristically titled to catch one's attention and pull the reader into the article. This makes it very difficult to search using logical terms because often times they can lead the researcher to something that has no relation to what information they are looking for. The controlled vocabulary used in humanities databases are very difficult to use because of the terminology is often ambiguous.
Interdisciplinary concepts are important to the humanities researcher.
Being able to link together information from other disciplines is often times needed to support one's thesis. Retrospective coverage is important in these databases because humanists rely on many sources that are older than what is usually included in other databases. Humanity scholars depend on primary sources. There is also a proliferation of Internet information sources for the humanity scholar to employ. Many universities have taken it upon themselves to create databases for the humanities.