Study On Enterprise Information Model For Large-scale, Single-piece And Small Batches

Enterprise informationization is an important measure to win competitive advantages and improve comprehensive competition of an enterprise. Enterprise information modeling is the significant basis for enterprises to carry out the advanced manufacturing strategy and business process reengineering as well as to realize the informationized enterprise, which can provide theory guidance for enterprise informationization to be established successfully and efficiently.Firstly, this paper addresses the environment of competition faced by manufacture and presents the current state of informationization establishment of manufactures in our country, then proposes that lack of theory guidance about enterprise informationization is the central reason for restraining the development of an enterprise. On such basis, it introduces the recent research situation of EM, EIM and EMT, analyzes the existing problems on the modeling technology and points out the direction of this paper .Analyzing large-scale, single-piece and small batches factories and regarding whole life cycle of enterprise information activities as main clue, this paper makes complete and detailed analysis on the information activities of such factories from the management functions, processes and activities and the establishment of data model and conception of BPR. It first puts forward enterprise model, data model and information model of the large-scale, single-piece and small batches factories and the concepts of enterprise state data, enterprise feature data, enterprise operation data and enterprise performance data, etc.According to the management characteristics of large-scale, single-piece and small-batch enterprise, the essay explains the features and key technology of the information system in such enterprise. It also expresses the designing philosophy and function structure, the technical key of the realization of the information system of large-scale, single-piece and small-batch enterprise and specific methods on how to achieve the close joint with CAPP/PDM and to control the cost and delivery date.On the ground of analyzing the common characteristics of enterprise information system's functions, this paper summarizes the fundamental objects and operations of enterprise information system. It develops basic composition of enterprise information systemon the basis of PFC-JZPFC class. Development of enterprise information system based onJZPFC will greatly improve development effectiveness, shorten development period and raise the reusability of the software.This enterprise information system model has been operated in more than ten enterprises such as WMMP( Wuhan Marine Machinery Plant). The result of application suggests that the information system model has common compatibility and practical popularization value for the establishment of information system in the large-scale, single-piece and small-batch enterprises.