This report describes the development of Detailed Work Activities (DWAs) included in the O*NET system. DWAs provide information on the common work activities required across occupations by coding the work activities to O*NET-SOC occupations. They provide a level of description between O*NET's General Work Activities and more detailed tasks. The DWA development work evolved from the USDOL/ETA Labor Exchange Skills Project as well as user feedback. DWAs have been incorporated into web applications such as America's Career InfoNet , O*NET OnLine, and O*NET Code Connector.