A number of companies have conducted "vendor clinics, which are organized whereby are brought into the host plant in to hear presentations by various managers and quality-control personnel with respect to quality policy, quality levels, quality-control procedures, handling of engineering changes, and similar subjects. Opportunity is taken to show the vendors where the part they furnish fits into the final product and why certain requirements are important. Brochures or programs are printed, including a résumé of subjects discussed.