Ford Motor Company's Direct Labor Management System (DLMS) utilizes knowledgerepresentation schemebased on the KL-ONEfamily of languages to represent the world of automobile vehicle assembly knowledge. DLMSis an implemented system that has beenutilized by Fordpersonnel since 1991and it remainsan integral part of Ford's worldwidemanufacturing strategy. This paper will describe the rationale for the use of KLONE, provide an overview of how KL-ONE was implemented into DLMS,discuss the advantages and disadvantages of using a knowledgerepresentation schemesuch as KLONEin a production environment and present an evaluation of howknowledgerepresentation and reasoning systems can be successfully utilized in industry.