| Subject | English | Greek |
| IT | validity check | έλεγχος εγκυρότητας |
| comp., MS | validity check | έλεγχος εγκυρότητας (The process of analyzing data to determine whether it conforms to predetermined completeness and consistency parameters) |
| commun. | validity check character | χαρακτήρας ελέγχου εγκυρότητας |