Product service systems (PSS), which generate higher value by integrating physical products and services, have attracted much attention in the manufacturing industry. To design a PSS, initiating companies need to explore various PSS options at the conceptual design stage. However, our PSS design workshops have revealed that traditional product-selling manufacturers rarely include PSS options because a PSS, which includes many service elements, is far from their traditional business. This study proposes a task management framework that enables manufacturers to develop various PSS options from their product-selling business. The proposed framework provides designers with viewpoints and checklists for a PSS design. The effectiveness of the framework is demonstrated through an example case.
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