A drawing editor key 3 with capabilities of defining figure parts and preserving connection/inclusion relationships

Toshio Matsuura

Faculty of Engineering Science, Osaka University, Toyonaka, Japan 560

Toshio Matsuura graduated in 1975 from the Dept. Inf. and Comp. Sci., Fac. Eng. Sci., Osaka University, where he retired from the second half of the doctoral program in 1979 and became an Assistant in the Dept. Inf. and Comp. Sci., Fac. Eng. Sci.,Osaka University. He is interested in the software development environment and the user interface. He is a member of the Inf. Proc. Soc. Jap. and of ACM.

Hajime Naota

Faculty of Engineering Science, Osaka University, Toyonaka, Japan 560

Hajime Naota graduated in 1988 from the Dept. Inf. and Comp. Sci., Fac. Eng. Sci., Osaka University, where he completed the first half of the doctoral program in 1990 and affiliated with Fujitsu Co. he is interested in the theory of graphs and theuser interface.

Makoto Nakamura

Nonmember

Computer Systems Laboratories, Sharp Corporation, Tenri, Japan 632