Intelligentsecurity system
operating system integrity
system integrity service
Non-integrity system of human body
closed-circuit television security and intercom system
E-government System Network Room Integrated Security Management
Integrated security system
Integrative security system
integrity of fire main system
integrity of system’s function
International Security System
Internet security system
interrupt priority system
OSISA Open System Interconnection Security Architecture
priority interrupt system
priority interruption system
Railway Social Security Integrated Information System