The SIM/Tool is a low fidelity but highly versatile tool that supports generation of simulations of mission equipment. These simulations can be generated during the early life cycle phases and evolved, and used throughout the remainder of the life cycle.

Uses for simulations during the mission life cycle include:
Conceptual Design
Requirements Analysis
Graphical User Interface Prototyping
Developmental Testing
Integration Testing
System Testing
Operator Training
Mission Rehearsals
System Demonstrations
Application Trouble Shooting
Mission Fault Resolution

In conjunction with OS/COMET®, use of the SIM/Tool can comprise a complete system by performing generation, configuration, execution, and control simulations of mission-specific equipment.