input method; input system
Computing term for the method or system used to input data, such as keyboard layouts, IMEs, or voice input.
このソフトは複数の入力方式に対応している。
This software supports multiple input methods.
日本語の入力方式にはローマ字入力とかな
Japanese input methods include romaji input and kana input.
入力方式 is the plain Japanese term for a text input method, while ＩＭ is the abbreviated technical term used in software settings.
Compound of 入力 (input) and 方式 (method, system).