JURNAL MEDIA MAHARDHIKA – Vol. 6 No. 2 Januari 2008 KAJIAN IMPLEMENTASI ACTIVITY BASED COSTING SYSTEM Oleh: Marini Purwanto ABSTRACT Activity based costing is good idea in solve problem cost accounting and management control systems. ABC system provide useful information for managing manufacturing operations. Functional based costing system fail to provide accurate product costs, information to decision concerning pricing. ABC has been widely supported as superior to tradisional costing for supplying cost information for a variety of uses, including product costing and long run pricing. ABC system most effective solution is to develop systems, one for strategic costing and another for operational improvement. The implementation of ABC system has behavioural impacts that will change management, and will affect management policy. Implementation of ABC will success if management can solve problem technology sophisticated, top management support, integration of ABC into the financial system and the use of ABC as part of the budgeting process, behavioural issue. Key words : activity based costing systems, constraint of implematation.