All of the components are rated based upon DET’s, and either RETs or FTRs.
| Component | RETs | FTRs | DETs |
|---|---|---|---|
| External Inputs (EI) | yes | yes | |
| External Outputs (EO) | yes | yes | |
| External Inquiries (EQ) | yes | yes | |
| External Interface Files (EIF) | yes | yes | |
| Internal Logical Files (ILF) | yes | yes |