In computing, FOSI (Formatting Output Specification Instance) is a stylesheet language for SGML and, later, XML. FOSI was developed by the US Department of Defense to control the pagination and layout of SGML and XML technical data.
formatting output specification instance meaning:[Computer] < text , standard > (FOSI) An old SGML DTD standard for document management in the US military, to be replaced (soon after Oct 1996?) by the ISO standard DSSSL .