SSI - Small - Scale Integration

SSL - Secure Socket Layer

SSM - Single Segment Message

SSO - System Setup Object

SSOC - Space System and Operations Command

SSP - Scientific Subroutine Package

SSP - State Strict Passive

SSQAP - Standard for Software Quality Assurance Plans

SSQM - Strategy Software Quality Management

SSR - Software Specification Review

SSS - System Segment Specification

SST - Structured Spanning Tree

ST - Send Time

ST - Symbol Table

STC - Software Technology Center

STCP - Spanning Tree Construction Problem

STD - State Transition Diagram

STD - Standard

STDERR - Standard Error

STDIN - Standard Input

STDM - Synchronous TDM

STDM - Statistical Time Division Multiplexing

STDOUT - Standard Output

STE - Section Terminating Equipment

STEIM - "Software Technologies Evaluation