Secondary Ion Mass Spectrometry 
Secondary Ion Mass Spectroscopy 
Shuttle Imaging Microwave System 
Shuttle Inventory Management System 
secondary ion mass spectrometer 
Security Information Management System 
Simulated Mission Support 
Supply Inventory Management System 
Symbolic Integrated Maintenance System 
SOUTHCOM Information Management System 
Stock Exchange of Thailand Information… 
Safety Information Management System 
safety issues management system 
Sandia intruder motion simulator 
Sandia issues management system 
School Improvement Management System 
School Information Management System 
Schools Information Management System 
Sea Ice Monitoring Site 
Secondary Ion Mas Spectroscopy 
Secondary ion mass spectrometric 
Secondary Ion Mass Spectrum 
Secondary ion-mass spectometry 
Secondary Ion-Mass Spectrometry 
Security Information Management Soluti… 
selected item management system 
Single Internal Market Service 
Single-Item, Multi-Source 
Societal Institute of the Mathematical… 
SOUTHCOM Intelligence Management Syste…