To face hyper-competitive environment, effective control on cost as a niche is the most important issue to business. However, properly allocation and compute accuracy on cost in the process of valid control is a major prerequisite. Therefore, how to decline variation on cost allocation through straight apportion which plays a key role on fully adequately cost. The Activity-Based Costing system¡]ABC system¡^ provides the major function properly for cost principle. The ABC system is not only making cost information efficiently but also assist Chief Executive Officer¡]CEO¡^ to make decision adequately under vary from minute to minute environment. This essay is focus on heavy machinery company as a subject through operation process analysis and responsibility center as a performance evaluation basis try to solve the currently problem that existed at responsibility center. Moreover, to seek out a proper costing amendments and allocation method for the case company after study that can enhance information quality for management on decision-making. Non-direct cost allocation to the case company declines during Activity-Based Costing System as a main shaft to adjust cost collective method. In the meanwhile, advance the costing accuracy makes management to get legitimate information is the most significant contribution to subject company.

台灣的高科技研發設計產業長期以來一直享有較高的競爭優勢以及令人稱羨的利潤，但近幾年來，在面對全球性競爭與快速變遷的環境下，原先具有的高品質及低開發成本的優勢有逐漸喪失的情形。而企業為了維持原有的競爭優勢，除了加緊腳步在研發技術的創新、提供服務的效率以及營運成本的控制上找出最好的方法及策略外，而如何計算產品成本，如何有效訂價，更為企業迎戰此一競局的重要考量。 由於傳統的成本制度無法滿足快速變遷的製造環境，高科技研發設計產業亟需新的方法以適時的提供相關成本資訊，做為決策之用。而作業基礎成本制度(Activity-Based Costing System, ABC)經過學術界的大力推廣及實務上不斷的經驗累積，大多認為此一制度不僅可以減少成本扭曲，更重要的是可以協助管理者進行較佳的成本控制，增加企業營運的效率，以及進一步可以輔助產品的訂價及競爭策略。 因此，本研究係以國內某高科技軟/硬體研發設計公司為研究對象，透過個案研究及作業基礎成本法之探討，分析高科技研發設計公司成本組成及影響成本活動的因素，並建立其關聯，藉此提出一套可供研發設計公司參考之成本分析架構與模式，並進而協助相關企業在產品研發及訂價方面做出最好之決策。 / The R&D design industry of Taiwan have enjoyed high competition advantages & high profit margin for a long time. But in recent year, under global competition & environment of rapid change, those advantages have lost gradually. In order to maintain the original competition advantages, enterprises need to step up the step to find out the best method and tactics in R&D innovation, service providing of high efficiency and control of operating cost. Besides, It is also the important consideration for those companies to think about how to calculate the product cost and set up the pricing strategy. Because the traditional cost system cannot satisfy the diversified manufacturing environment, R&D design industry tremendously need a new cost method which provides decision-makers with up-to-date, complete, and reliable cost information. Activity-Based Costing System (ABC) has been approved by academic study & implemented by a lot of company. Mostly think that this system cannot merely reduce the cost to distort, the more important thing is that can help top managers to control better cost, increase the operating efficiency, and program the better pricing strategy. This paper studies how a software/hardware design company by adopting the activity-based costing (ABC) system traces and analyze all of the cost elements associated with research & development activities. The main purpose of this study is trying to use ABC costing system to build a cost model for future application in the R&D design industry and hope this study can help relevant enterprises to make the best decision in the product development and establish the competitive pricing strategy.