| Subject | English | Dutch |
| commun. | class 4/5 system | gecombineerd lokaal/interlokaal systeem |
| transp. | CLASS-System | CLASS-systeem |
| comp., MS | system class | systeemklasse (A class that the CIM Object Manager defines to support core features such as event notification, security, and localization. A system class is automatically defined in each namespace) |