My career started as a researcher of Software Engineering, especially statistical effort estimation, in a university and developed some estimation tools for some Japanese companies in a collaborative research project. This work consisted of my academic research background, prediction technology with statistical data analysis.
I then joined NTT DATA, a Japanese IT service company. And I have continued on effort estimation research with statistical analyses of the historical project data with R, SPSS and MS-Excel. It also involved some developments of a series of analysis tools to provide the services to NTT DATA and the group companies, built with Java, JavaScript, MySQL and some framewo...