Who classified the content by place, time, topic, and type of item?
Work of this kind normally is done by library professionals known as catalogers, who work according to established rules within any one of a number of widely used national and international cataloging systems to produce bibliographic data (also known as metadata). To the extent possible, the WDL relied upon existing catalog records supplied by the partner institutions, and supplemented this information as needed to ensure adequate browsing. For classification by topic, the WDL relies upon the Dewey Decimal Classification System, which was made available in the seven interface languages by OCLC. The Dewey Decimal Classification System is undergoing adaptation and internationalization to improve its ability to classify content from a multiplicity of countries and cultures.
