This document covers the data terms used in the "Apprentices and trainees early trend estimates June 2010" publication. The primary purpose of this document is to assist users of the report to understand the specific data terms used within it. Terms that appear in the report are listed in alphabetical order with the following information provided for each: (1) Definition: a brief explanation of the term; (2) Classification categories: defined categories that apply to each term are listed where applicable; and (3) Source: a description of the source of this information, including details of any calculations or derivations. [This document was produced as an added resource for the report "Apprentices and trainees Early trend estimates to March 2010 (ED509789). For the accompanying added resource report, see "Apprentices and Trainees: Early Trend Estimates. June Quarter 2010", see ED511549.]