HP R4.2 - Manual (Page 732)

Glossary US
UCS 1000 R4.2 Administration 585-313-507 Issue 3 April 2000 693
US
United States of America
UNIX Operating System
A multiuser, multitasking computer operating system originally developed by Lucent
Technologies.
UNIX shell
The command language that provides a user interface to the UNIX operating
system.
upgrade scenario
The particular combination of current hardware, software, application and target
hardware, software, applications, etc.
usability
A measurement of how easy an application is for callers to use. The measurement is
made by making observations and by asking questions. An application should have
high usability to be successful.
USOC
universal service ordering code