抄録
Many software systems have been produced under host-concentrated development environment. In such host-concentrated one, the progress of software development technologies has caused several issues that the increase of response time influences to software productivity and all of development management activities are suspended when the system is down. However, from the late 1980s, personal computers have been spread on our daily life instead of conventional mainframe machines, because the price and performance of personal computers have been extremely improved. At present, computer systems which aid the software development management have been also changing into UNIX workstations or personal computers to reduce the development cost. And Client/Server Systems (CSS's) have come into existence as a result of the progress of networking technology by UNIX systems. Such CSS's have been used more and more in the period of network computing. Thus, the software development environment has been changing into distributed one because of the progress of network computing technologies.
In this paper, we introduce a software reliability growth model (SRGM) for distributed development environment by applying a mathematical technique of stochastic differential equations. We propose the estimation method for the unknown parameters of our model.
