Portable Operating System Interface (uniX POSIX) : A universal interface from UNIX to applications programs that improves interoperability because it runs on most hardware
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}