| Acronym | Meaning |
 | OS | Operating System |
 | SIS | Software Integrated Schedule |
 | EOL | End Of Line |
 | SMS | Shuttle Mission Simulator |
 | PGA | Power Generating Assembly |
 | TD | Terminal Distributor |
 | SIS | Software Implementation Specification |
 | MKTI | Mission Kit Technical Instruction |
 | SEAPG | Support Equipment Acquisition Planning Group |
 | FCF | Flight Critical Forward |