Abstract
Information modeling is critical to the integration of conceptual design and process planning. An information model for conceptual design is provided in this paper. Conceptual design is a key activity in early product development. It determines product functions, form, and the basic structure. Major manufacturing cost is committed in early conceptual design process. The model presented in this paper includes an activity model for the conceptual design process and an object model for classes used in conceptual design. The activity model sets the context in which the objects are defined and used. The object model describes the data and functions used in conceptual design and integration with process planning. The main purpose of the model development is to initiate standard interface specifications that are necessary for design and process planning integration.