Recently, Product-Service System (PSS) that is consisting of tangible products and intangible services have been regarded as a new business model for manufacturing firms to gain competitiveness. In order to increasing efficiency of PSS business design process, it is important for designer to evaluate design solutions in the early-stage of the design process. To do so, in this study, the concept of qualitative simulation is applied to PSS business design. Especially, we propose a modeling method based on Balance Score Card (BSC) so that designers can develop PSS business strategy in the early-stage of PSS business design process.
