Information Systems Development Methodology And Evaluation Studies

With the picking up of the market competition and the coming of the information times, it makes the information system more and more important. Today, more and more corporations are using or plan to use information system as one of the most important measures to improve competition power.But the victory rate of information system development is not high in this time. So this paper put the emphases at on how to improve the rate. This paper firstly studies the causes of the problem to settle it good.First, this paper studies the information system developing problem. We not only systemic and synthesis discuss the existing information system developing measures, but also found a new information system developing measure: The measure of combine high and low with evaluation pervasion; Second, this paper studies some other aspects related closely with information system development: information system developing model and information system developing pattern; Third, this paper pay more attention to information system evaluation problem, the emphases in it is information system evaluation measure, and we put out the new measure "3+1" integration measure based on optimism modulus appraise score means and multiplication model.