http://www.ogis-ri.co.jp/otc/products/objectivity/index.html
http://linux.nikkeibp.co.jp/news/57.shtml
http://linux.ascii24.com/linux/news/today/1999/10/19/300000-000.html
http://www.zdnet.co.jp/pcweek/web_wire/9903/03/p-010.html