| Abbreviation | Definition |
|---|---|
| ALM | Application Lifecycle Management |
| ALM | Appware Loadable Module |
| ALMAS | ALert MAnagement Service |
| ALOA | Adaptive Level One Accelerator |
| ALP | Association for Logic Programming |
| ALPA | Assembly Language Programming Assistant |
| ALPACA | A Language for Programming Arbitrary Cellular Automata |
| ALPM | Arch Linux Package Management |
| ALPN | Application Layer Protocol Negotiation |
| ALPR | Automated License Plate Readers |
| ALR | ADRIFT Language Resource |
| ALS | Action Logic System |
| ALS | Advanced Labelling System |
| ALSC | Architecture Layers of Smart City |
| ALSI | Association of the Lebanese Software Industry |
| ALSP | Aggregate Level Simulation Protocol |
| ALT | ALTernate key |
| ALTOD | Adaptive Lag Compensated, Time Of Day |
| ALV | ABAP List Viewer (now called SAP List Viewer) |
| AM | Agile Modeling |