Metadata for Administrative and Social Science Data
Robert B Allen

Data are valuable but finding the right data is often difficult. This chapter reviews current approaches to metadata about numeric data and considers approaches that may facilitate the identification of relevant data. In addition, the chapter reviews how metadata support repositories, portals, and services. There are many emerging metadata standards, but they are applied unevenly so that there is no comprehensive approach. There has been greater emphasis on structural issues than on semantic descriptions.