Takao Shimomura is a professor of the Dept. of Info Sci. & Intel. Syst. at the University of Tokushima in Japan. He was a senior research engineer at NTT Software Laboratories from 1975 to 1995 and a guest associate professor at the Graduate School of Information Systems of the University of Electro-Communications from 1992 to 1994. His research interests include software design automation, program visualization, and automated debugging. He has a BS from Kyoto University, an MS from Tohoku University, and a PhD from Tokyo Institute of Technology.