Abstract
The requirement of shortening of the development period to the software project increases with the upgrade and the complication of the function year by year. But many software projects have difficulty in securing a delivery for planned. The author attempted the extraction of the condition which influenced for the development period through the hearing to the manager involved in the comparison analysis of projects with long development period and short projects. In this paper, it reports on some factors which should be noted to improve the software development speed.
