Overview of Metadata
http://www.gslis.utexas.edu/%7El38613dw/readings/Metadata.html

Wyllys, R.E.
University of Texas
2000

Abstract:

Thus "metadata" means "data that deal with other data," or "data that deal with original data,"or casually but briefly, "data about data." Within the library- and information-science (LIS) community, the most frequent use of "metadata" is to refer to data produced as part of the process of cataloging of materials in libraries and other information agencies.