The increased competitive pressure forces companies to cease distinguishing products and services, and to provide customers with highly individualised solutions. To meet this requirement, it has been proposed the concept of product–service system (PSS) that is not simply an extension of physical products by delivering non-physical services to customers, but a systematic combination of products and services. However, most current studies do not consider the multi-disciplinary integration relating to the PSS design process, during which the collaboration within the product and service design teams should be achieved. Otherwise, the large number of iterative design activities resulting from poor multi-disciplinary collaboration may lead to long development lead-times and high development cost.

To achieve the multi-disciplinary integration during the PSS design process, the authors propose an integrated design method using an improved interface modelling approach that provides a structural form to represent the information transfer between product and service components. The proposed PSS design method enables the product and service design teams to decrease the iterative design activities and improve their collaboration so that a more integrated design process can be accomplished. To demonstrate its effectiveness, the design method is applied to a design case of an industrial PSS.

日益增加的竞争压力迫使公司停止区分产品和服务，并为客户提供高度个性化的解决方案。为满足这一需求，人们提出了产品服务系统（Product-Service System，PSS）的概念，它不是简单地通过向客户提供非物理服务的物理产品的延伸，而是产品和服务的系统组合。然而，目前大多数研究没有考虑与 PSS 设计过程相关的多学科整合，在此过程中应该实现产品和服务设计团队之间的协作。否则，多学科协作不畅导致的大量迭代设计活动可能会导致开发周期长和开发成本高。

为了在 PSS 设计过程中实现多学科集成，作者提出了一种使用改进的接口建模方法的集成设计方法，该方法提供了一种结构形式来表示产品和服务组件之间的信息传递。提议的 PSS 设计方法使产品和服务设计团队能够减少迭代设计活动并改善他们的协作，从而可以完成更加集成的设计过程。为了证明其有效性，将该设计方法应用于工业 PSS 的设计案例。