Trends of integrating products and services lead to the emergence of Product-Service System (PSS). To implement and embody a PSS solution in new product development, a comprehensive design framework is allowed designers to facilitate the design factors of the PSS in complex business environments. A physical product, containing functionalities for services, is the role of medium between customers and a manufactures. Customers can access those metaphysical interfaces to utilize the product fully or expand its performances. The PSS is aiming to prolong its lifecycle while maintaining its expected quality. Since the quality can be represented as a measure which belongs to user’s perspective, guaranteeing certain level of quality can be interpreted to sustaining customer satisfaction. The objective of this paper is to propose a PSS design framework to identify design factors for developing products and services by integrating object-oriented concepts and blueprinting in context of a business ecosystem. The proposed model is developed based on relationship products and services matching with their design factors. The products and the services are then brought together to form a PSS. Functions and processes can be categorized to identify the design factors in different levels using the object-oriented concepts. Objected-oriented concepts provide PSS analysis tools for describing a business process or a workflow process in the PSS. The blueprint is used to identify the relationships between the products functions and the service processes that are offered as part of a job. To demonstrate of the effectiveness of the proposed model, we use a case study involving a smart phone.

1. Introduction
 2. The Proposed PSS Design Framework
  2.1 A PSS Design Framework
  2.2 Design Factor Identification
  2.3 Product-Service Platform
  2.4 Extended Object-Oriented Concepts and aBlueprint to a PSS
 3. Case Study
 4. Closing Remarks and Future Work
 Acknowledgement
 References

• Hyung Sool Oh(Department of Industrial and Management, Kangwon National University) | 오형술 Corresponding Author
• Seung Ki Moon(Mechanical and Aerospace Engineering, Nanyang Technological University) | 문승기