3.3 Abbreviated terms
| CoAP | Constrained Application Protocol |
| DDL | Device Description Language |
| DTDL | Digital Twin Description Language |
| ERP | Enterprise Resource Planning |
| GDL | Generic Description Language |
| HMI | Human Machine Interface |
| HTTP | Hyper Text Transfer Protocol |
| JSON | JavaScript Object Notation |
| MES | Manufacturing Execution System |
| MQTT | Message Queuing Telemetry Transport |
| PMS | Production Management System |
| URI | Uniform Resource Identifier |
| TD | Web of Things Thing Description |
| W3C | World Wide Web Consortium |
| WoT | Web of Things |
| XML | Extensible Markup Language |