| Subject | English | Polish |
| comp., MS | multiple-document interface | interfejs dokumentu wielokrotnego (A specification according to which documents are opened into windows (sometimes called child windows) that are constrained to a single primary (parent) window) |
| comp., MS | single-document interface | Single Document Interface (A specification according to which each open document occupies its own window in the UI, though only a single instance of the program application is running) |