Nippon Systemix, a $3m-a-year software house majoring on Unix, has come up with an interactive expert system called Mind-Expert as a Unix systems development aid: it consists of five modules, each going for $330, which are offered on Toshiba’s UX series of Unix workstations; the system was developed jointly with $118m-a-year Nippon Business Automation, and is targeted at banks and manufacturers.