194 IMS definitions

Information Management System 
Integrated Master Schedule 
International Monitoring System 
Integrated Management System 
International Military Staff 
Inventory Management System 
Ion Mobility Spectrometry 
I am sorry 
International Magnetospheric Study 
Image Management System 
Incident Management System 
Inductive Magnetic Saturation 
Instant Mobility System 
Instructional Management System 
Intermodal Management System 
International Military Students 
Ion Mass Spectrometer 
IP Multimedia Subsystem 
If Memory Serves 
I'm Sorry 
Industrial Management Society 
Industrial Mathematics Society 
Information Management Staff 
Institute of Management Services 
Institutional Management Support 
Institutional Management System 
Instructional Management Systems 
Intelligent Manufacturing Systems 
Interplanetary Monitor Satellite 
Ice Mapping System