| Acronym | Meaning |
| DEBI | DMA Extended Bus Interface |
| DTD | Document Type Definition |
| ESCD | Extended System Configuration Data |
| IEEE | Institute Of Electrical And Electronics Engineers |
| AWT | Abstract Windows Toolkit |
| VRML | Virtual Reality Modeling Language |
| DDE | Dynamic Data Exchange |
| CSDGM | Content Standard For Digital Geospatial Metadata |
| AES | Asynchronous Event Scheduler |
| WATS | Wide Area Telecommunications System |