关键词: 并行工程, 活动模型, 产品开发

Abstract: As the activity is the fundamental element of product development process， the property of it decide the realization mode of Concurrent Engineering（CE）. A three-dimension activity model is proposed which is composed of three aspects： resource， process and technology. From the analysis of the 3-D activity model， two application mode of concurrency for CE are discussed. The first is the concurrent design which effects in the design stage， and the second is the dynamical activity concurrence based on the pre-released information from the task state model which effects in the product development process.

Key words: concurrent engineering, activity model, product development