What are the problems that controlled vocabularies were invented to solve?
- variant spellings - [example]
- inherent ambiguity in nearly all words - [example "wings"]
- birds
- airplanes
- architecture
- political parties
- angels
- insects
- musical groups
- synonymous terms that you should think of but won't - [example]
- retrieval that is either too specific or too general -
[example : Divorce > Children of Divorced Parents > Adult Children of Divorced Parents]
