A list (also sometimes called a pick list) is a limited set of terms arranged as a simple alphabetical list or in some other logically evident way. Lists are used to describe aspects of content objects or entities that have a limited number of possibilities. Examples include geography (e.g., country, state, city), language (e.g., English, French, Swedish), or format (e.g., text, image, sound).
The system should allow the user to:
- Create a controlled list of unique terms
- Control the order of terms in a controlled list
- Assign the controlled list to a field or fields
- Add new terms to a list
- Invalidate list terms
From presentation noted below:
In a well-constructed controlled list:
- Each term must be unique (no homographs)
- Terms should all be members of the same class
- Terms should not be overlapping in meaning
- Terms should be equal in granularity or specificity
- Terms are arranged alphabetically or in another logical order
Definition from ANSI/NISO Z39.19-2005
Requirements from: "Seek and Ye Shall Find," a presentation by Murtha Baca from the 2008 SLA annual conference, available at http://www.slideshare.net/vonjobi/murtha-baca-470569, (accessed September 9, 2009).