A novel modeling and simulation methodology of Enterprise Information System activities

Enterprise Information System (EIS) is an important guarantee of modern enterprises´ normal operation and growth. As a type of information system, EIS can be regarded essentially as a set of enterprise´s information processing units which are interactively communicating. Based on this cognition, this paper uses the thought of discrete event system as the reference to propose a formal EIS standard model, Unified Model of Enterprise Information System (UMEIS). Also, on this basis, this paper presents a methodology of mapping the UMEIS to OPNET simulation model, making the OPNET capable of being used in simulating EIS activities established with UMEIS specification. Furthermore, the detailed steps of modeling and simulation of EIS activities using OPNET have been given in this paper. The model and methodology proposed in this paper provide a new path of simulation demonstration and evaluation of EIS activities.