Designed for the exclusive purpose of accompanying the Project EDNEED (Empirical Determination of Nationally Essential Educational Data) classification document, this volume comprises the third of a five-volume final report. It provides uniform definitions for vocational education terms found in the EDNEED classification document, and aids in understanding information elements used in gathering and interpreting data for planning, organizing, implementing and evaluating vocational education programs. The format follows the 18 file categorical listing found in the classification document. (TA)