A Study On The Enterprise Information System Architecture And It's Construction

The infomationization in enterprises is becoming a trend nowadays, but most of the plans are all at will. Maybe they did not have plans at all, even if they have a plan, the plan can only lists the aim of construction on information system, such as modules and subsystems without considering the whole system. The construction of enterprises'information systems is a long-time process with circulation rise, not be done in one action. Many enterprises'informationization have developed to a certain extent with a lot of following projects to do, the trend is always to turn"enterprise"to"Digital Firm". This is similar to establish a consummate national economy, society and industry system. A consummate digital firm is based on long term, sustainable, completely and systematically development, grow up unceasingly. The construction of a digital firm needs a lot of requests. This paper proposed the construction of a complete, sustainable digital firm's information system.The information system architecture (ISA) is a new area to research these years. The meaning of the architecture means more than the architecture of the computer and the network's structure. It tells us how to implement the overall development plan with ideological and philosophical through by step and step. It's not strategic planning, not budget, not the diagram of the components of hardware, not a list of new technologies. The accumulation of all above are the architecture, any single part of it cannot represent all of them. It not only involves broadly computer technologies, but also the strategic planning, the management way, process of business, environment, resources management, etc. As a tool of top managers to recognize needs of the enterprise, it can also evaluate the how different architectures impact on the information system. The architecture of the information system is a flexible way to help enterprises to design new information systems. Developing information system architecture is the hardest and the most important problem to the information system's managers. Though many enterprises have put a lot of time and money in doing it, successful cases are so rarely. Maybe it due to people took the information system architecture as a new thing and people have not understood the concept, the way of developing it, the results and the reasons restrict the success of the information architecture. The aim of this paper is to present the architecture of the information system.Therefore, the establishment of an effective information system architecture for an enterprise or organization is very necessary. If the information system architecture design of this thoughtful, there would be re-developed structure of the resulting complex follow-up engineering, management, the confusion on technological progress and timely follow-up to lag behind our competitors. no real decision-making data support, leading to the failure to develop effective decision-making, information systems security and stability can not be the running not even because of ethical planning and caused all kinds of problems.Domestic enterprises mostly pay attention to information plan at present. Though someone proposed the system, someone proposed some aspects including what projects should be constructed and how to integrate the system to guarantee the links up, the main contents of information system are not integrity enough. With the digitization and informationization of the society, some enterprises'strategic plans are not comprehensive enough. Such as the lacking of considering on the society ethics problems, right of information privacy problems, safety control problems and the lacking of consideration of long term development in organization system management.Based on the application of architecture in architecture engineering, the meaning of architecture, its components and the factors which must be considered in the realization of the architecture are analyzed in this paper. In combination with the application of architecture in computer area, the concept of ISA is proposed, and finally the framework of ISA with six parts with different dimensions is put forward.This paper will be the first chapter of topics background, significance, the paper will use the research methods, focus and Difficulties and innovation points to be elaborated led topic; The second chapter will be information system architecture, the study of the status quo of Chinese enterprise information system architecture exists Construction Summary of the issues; Chapter III will be used in this paper explained some basic theories; Chapter IV will focus on information system architecture of the system-meaning, the main components of the system and the components of the relationship between how elaborate; Chapter 5 will be information system architecture of the system - the relationship between the construction of a detailed description, including building, Security organizations, strategic planning and the relationship between construction methods and information system architecture evaluation method described; Chapter 6 will focus on information system architecture evaluation methods; Chapter VII will be a medium-sized pharmaceutical enterprises as an example of information system architecture of the evaluation study; Chapter VIII of this paper is to summarize and Prospect part.