| Subject | English | Thesaurus |
| IT, abbr. | Open Transport | OT (Apple) |
| comp., net., abbr. | Open Transport Network | OTN |
| IT, abbr. | Open Transport/Point-to-Point Protocol | OTPPP (Apple, OT, PPP) |
| IT, abbr. | Open Transport/Point-to-Point Protocol | OT/PPP (Apple, OT, PPP) |
| IT, abbr. | X/open Transport Interface | XTI (X/Open, X-Windows) |
| abbr., comp., net. | X/Open Transport Interface | XTI |