Labels:text | screenshot | font OCR: The Composition Of Spec 1170 FIGURE 1 XPG4 commands and utilities 14.9% XPG4 system interfaces and headers 36.1% Novell's System V Interface Definition (SVID), Edition 3, Level 1 31.9% OSF's Application Environment Specification (AES) Full Use Interface 2.4% Other usage-based interfaces 14.7%