Digital factory is based on the data of product life cycle, and according to the principle of virtual manufacturing and lean production, taking the advantage of computer simulation technology, virtual reality technology and network technology, to carry out three-dimensional simulation, analysis and optimization on the entire production activities, including product design, process planning, logistics planning, comprehensive evaluation and practical application. In this paper, we establish the workflow management model for digital factory, to clearly describes the time factor in all aspects of the business processes, so that comprehensively control the waste of time in workflow.
