Abstract
Public Administration Sector, NTT DATA Corporation has been conducting the SPI activity as a whole organization. The sector consists of 10 divisions and each division is the unit of this activity. Each division has various projects which develop systems with different various types and sizes, and has different organizational characteristics and process maturity. So the SPI activity has been performed by showing the organizational unified policy and by considering diversity of divisions. As a result, some organizations are appraised as the CMMI (Capability Maturity Model Integration) level 3 and some organizations have been conducting the SPI by the unique method which is not based on the CMMI. In this paper, we present our SPI activity for the organization with various characteristics.
