意思決定支援システム いしけっていしえんシステム Also written 意志決定支援システム Meanings Noun decision support system; DSS Kanji 意 mind. Read as イ. 思 think 決 decide. Read as ケツ. 定 fix. Read as テイ. 支 support 援 aid. Read as エン. Word lists Computing Jinuma: Japanese Dictionary · Word lists