LAVIS is a software tool created by the TOOL Corporation, Japan. LAVIS is a "layout visualisation platform". It supports a variety of formats such as GDSII, OASIS and LEF/DEF  and can be used as a platform for common IC processes.
- LAVIS product page, http://www.tool-corp.com/ProductEn/Lavis
- IC Journal, TechMedia, 2010, http://www.eejournal.com/icjournal/news/20100611-01