A framework of requirements tracing using UML. - Toshihiko Tsumaki; Yoshitomi Morisawa (APSEC, 2000)

Requirements Engineering Pattern Structure. - Toshihiko Tsumaki (APSEC, 2004)

Framework for matching requirements elicitation techniques to project characteristics. - Toshihiko Tsumaki; Tetsuo Tamai (Softw. Process. Improv. Pract., 2006)

Exchanging the Business Concepts through Ontology System. - Toshihiko Tsumaki (JCKBSE, 2008)

Requirements engineering education for senior engineers: Course design and its evaluation. - Takako Nakatani; Toshihiko Tsumaki; Tetsuo Tamai (REET, 2010)

Requirements Maturation Analysis by Accessibility and Stability. - Takako Nakatani; Toshihiko Tsumaki; Michio Tsuda; Mari Inoki; Shouzo Hori; Keiichi Katamine (APSEC, 2011)

Requirements maturation analysis based on the distance between the source and developers. - Takako Nakatani; Toshihiko Tsumaki (CHASE, 2011)

Predicting Requirements Changes by Focusing on the Social Relations. - Takako Nakatani; Toshihiko Tsumaki (APCCM, 2014)

Estimation of the Maturation Type of Requirements from Their Accessibility and Stability. - Takako Nakatani; Shouzo Hori; Keiichi Katamine; Michio Tsuda; Toshihiko Tsumaki (IEICE Trans. Inf. Syst., 2014)