| Subject | English | Japanese |
| comp., MS | data extension | データ拡張機能 (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 | データ マイニング拡張機能 (In Analysis Services, a statement that performs mining tasks programmatically) |
| comp., MS | data processing extension | データ処理拡張機能 (A plug-in that processes data for a specific kind of data source (similar to a database driver)) |