| Metamodel concept | FDO/DOIP concept | Web/HTTP concept |
|---|---|---|
| Resource | FDO/DO | Resource |
| Service | DOIP service | Server/endpoint |
| Transaction | (not supported) | Conditional requests, 409 Conflict |
| Process | Extended operations | (primarily stateless), 100 Continue, 202 Accepted |
| Operation | DOIP Operation | Method, query parameters |
| Request | DOIP Request | Request |
| Response | DOIP Response | Response |
| Message | Segment, requestId |
Message, Representation |
| Channel | DOIP Transport protocol (e.g. TCP/IP, TLS). JSWS signatures. | TCP/IP, TLS, UDP |
| Protocol | DOIP 2.0, ++ | HTTP/1.1, HTTP/2, HTTP/3 |
| Link | PID/Handle | URL |