| Subject | English | Estonian |
| comp., MS | complex type (An element that can contain other elements or attributes and appears as | komplekstüüp |
| IT | NOT-OR-element | VÕI-EI-lülitus (VÕI-EI-element, Peirce'i element) |
| IT | OR-element | disjunkter |
| IT | OR-element | VÖI-element |
| IT | OR-element | VÖI-lülitus |