In systems biology era we try to understand the whole image of a cell as a molecular network, but methodology has hardly been established yet. Integrative approach, which consists of information science, systems engineering and biology, is a powerful method to achieve the perfect understanding of a biological system. In order to develop such a field, systems scientists have to extensively study information technology and life science. We currently push forward a joint study with researchers working in the fields of information technology, systems engineering and molecular biology. Study cooperations with such scientists are the key to achieve breakthroughs. If you are interested in our study, please contact us.