Product Design Scenario Modeling and Its Application

Abstract

Aiming at the imperfect knowledge acquisition in the current product design and incomplete representation of design requirements in the design process, this paper proposes a method of modeling based on the scenario of the design process. The product design process is divided into knowledge acquisition scenario, knowledge materialization scenario and feature verification scenario. In the process of knowledge representation, the concept of extenics primitives is introduced. Firstly, the design information is transformed into the requirement primitives by the knowledge acquisition scenario. In the materialization scenario, the requirements primitives are merged with the designer's thinking to form the conceptual plan primitives, and the preliminary design plan is formed by information materialization. Finally, the effect of production design plan is maximized by constructing a model of verification scenario and judging if the preliminary design plan is reasonable. What is more, the design scenario model is validated with a piece of logistics sorting equipment as the object of study. The results show that, the product features are efficiently expressed as the process evolves which effectively guides the product design process and verifies the feasibility of the method.