| Subject | English | Italian |
| IT | data extension | linea dati |
| comp., MS | data extension | estensione per i dati (A plug-in that processes data for a specific kind of data source. For example, Microsoft OLE DB Provider for DB2) |
| comp., MS | data mining extension | estensione di data mining (In Analysis Services, a statement that performs mining tasks programmatically) |
| comp., MS | data processing extension | estensione per l'elaborazione dati (A plug-in that processes data for a specific kind of data source (similar to a database driver)) |
| IT, el. | extension of the data base | stato |