| ACL | access control list |
| AD | application development |
| API | application programming interface |
| APPN | advanced peer-to-peer networking |
| ASCII | American National Standard Code for Information Interchange |
| ATM | asynchronous transfer mode |
| AUG | Affiliated user group |
| BI | business intelligence |
| BOFS | Birds-of-a-feather sessions |
| CCP | configuration control program |
| CET | Conference education team |
| CGI | common gateway interface |
| CL | control language |
| COS | Course of Study |
| CUDS | COMMON user discussion social |
| DASD | direct access storage device |
| DBCS | double byte character set |
| DBMS | database management system |
| DDM | distributed database manager |
| DSA | Distinguished Service Award |
| EC | electronic commerce |
| EDI | electronic document interchange |
| ERP | enterprise resource planning |
| GUI | graphical user interface |
| HOBO | Honorary board official |
| ILE | integrated language environment |
| IPL | initial program load |
| JAC | Judicial affairs council |
| LAN | local area network |
| LUG | Local user group |
| MOM | Meeting of the Members |
| OO | object oriented |
| PDM | program development manager |
| PTF | program temporary fix |
| RFP | request for proposal |
| ROI | return on investment |
| SDA | screen design aid |
| SEU | source entry utility |
| SME | Subject Matter Expert |
| SQL | structured query language |
| SUG | Sister user group |
| TCP/IP | transmission control protocol/internet protocol |
| TLC | Tactical liaisons to curriculum |
| UDB | Universal Database |
| VPS | Vendor product session |
| YiP | Young iSeries Professional |