| Abbreviation | Definition |
|---|---|
| STDF | Standard Test Data Format |
| STEP | Safety Tips For Elderly Persons |
| STEP | Software Technology Educational Program |
| STEP | Software Technology Educational Programs |
| STEP | Software Test and Evaluation Program |
| STEP | Standard To Enhancement Pack |
| STEPS | Software Technique For Evolutionary Participative System |
| STEW | Software Testing Education Workshop |
| STF | Sleuth Testing Framework |
| STG | Software Technology Group |
| STI | Segmenting Track Identifier |
| STI | State Transition Identifier |
| STIJPDAF | Segmenting Track Identifier-based Joint Probabilistic Data Association Filter |
| STIM | Stand and Tree Integrated Model |
| STIR | Software for Tomographic Image Reconstruction |
| STIS | Space-Time Intelligence System |
| STK | Sim Tool Kit |
| STK | Statistical Tool Kit |
| STK | Synthesis ToolKit in C++ |
| STKS | Software Technology Knowledge Solutions |