The CDS is a set of standards and definitions of data items rather than a survey instrument or set of data represented in a database. Each of the higher education surveys conducted by the participating publishers incorporates items from the CDS as well as unique items proprietary to each publisher. Consequently, the publishers’ surveys differ in that they utilize varying numbers of items from the CDS.
Those who report data for their colleges are urged to abide by the definitions and the cohorts specified when answering CDS items. They are also urged to use the answers to CDS items when responding to the numerous survey requests they receive, by distributing photocopies of their answers, posting them on their web sites, or by other effective means.