Abstract
In establishing appropriate business processes, it is seriously influential whether we can define requirements accurately or not. In other words, we cannot satisfy customers if we develop systems without understanding customers' real requirements or building consensus with them. NTT DATA originally systematized a business modeling methodology "MOYA" (Model-Oriented Methodology for Your Awareness) for solving the problems above and establishing appropriate business processes. MOYA is characterized by using models in describing customers' requirements and their background intentions. Through many discussions using models that anyone can understand intuitively, we can improve the accuracy of requirements definition. This paper gives an outline of MOYA and an instance of applying it to an actual project in financial industry.
