Global competitive and effective product development cycles increase pressure on manufacturing companies. Product Service System (PSS) research empirically examines sustainability of company performance and growth. As a result, implementing PSS from a manufacturing perspective requires diverse approaches and techniques to be adopted. Inventory Control in PSS creates a larger set of uncertainties that the factory needs to manage, due to the enhanced scope and complexity of the product and service offering. The aim of the research is to create a strategic approach to identify, analyse, and optimise the inventory control of PSS. An important motivation of this research relates to its ambition to combine the two areas: PSS and inventory control which have not traditionally come together. Research will be done in four stages (i.e literature study, study a system at Company A, develop a generic model, design architecture of PSS Inventory Control). This work will contribute to the current PSS research by developing a generic model of PSS Inventory Control of PSS Inventory Control from manufacturing operations perspectives and PSS Inventory financial model.