| Abbreviation | Definition |
|---|---|
| ISBB | Interactive Simlish Big Brother |
| ISBJ | Integrierte Software Berliner Jugendhilfe |
| ISBL | Information Systems Base Language |
| ISBN | International Standard Book Number |
| ISBU | Internet Software Business Unit |
| ISC | Internet Software Consortium |
| ISCAS | Institute of Software Chinese Academy of Sciences |
| ISCI | Industry Standard Coding Identification |
| ISCM | Integrated Software Configuration Management |
| ISD | Improved Standard Driver |
| ISDD | Informatics Software Download Database |
| ISDK | Industrial Software Development Kit |
| ISDK | Integration Software Development Kit |
| ISDL | In-Stack Detection Limit |
| ISDL | International Software Design Labs |
| ISDP | IT (Information Technology) Service Delivery Process |
| ISDS | Integrated Software Dependent System |
| ISDS | Integrated Software Dependent Systems |
| ISDT | Information Systems Design Theory |
| ISE | Innovative Software Engineering |