Enterprises using advanced technology prefer to benefit from highly reliable data and analysis in theprocess of making and implementing long-term decisions. It is desirable that these data reflect thereal situation of the business and be professionally prepared. The ability of the top managers of theenterprises to make the right decisions depends on the ability to analyze both the past and the presentof the enterprise. At the heart of this effective analysis and reliable information is an understanding ofstrategic cost management that is well-run in the enterprise.The aim of the study is to present a model that will enable companies that manufacture by usingadvanced technology and flexible production system to determine their current status in the strategiccost management process, to develop them, and to carry out planning and control activities effectively.In this context, the production, management and accounting system of a production company using theflexible production system with the case study method has been examined and its current situation interms of cost management has been revealed. Products with similar production systems are groupedtogether and general production costs are assigned to products using activity-based costing. The studydiffers from previous studies in that it deals with the flexible production system in cost managementand uses the group technology technique. With the study, it has been concluded that unit costs canbe calculated realistically by using the activity-based costing method in enterprises using advancedtechnology.