a type of function called many-valuedfunction 多価関数という関数 - EDR日英対訳辞書
In a research by the Japan Economic Foundation (2010) pertaining to a method of development of product/service involving exploration of emerging markets (Figure 3-2-1-34), it showed that more and more companies place importance on low pricing significantly by keeping down part of function/quality. Yet, still many companies favor generation of high added valued product by enhancing the function/performance/quality that are higher than that of at presents.―This explains that the business strategy of Japanese companies has been changing. 財団法人国際経済交流財団(2010)によると、新興国市場開拓に向けた商品・サービス等の開発方法として(第3-2-1-34 図)、「現状より高い機能・性能、品質による高付加価値化」と並び、「一部の機能・品質を抑え、大幅な低価格化」を将来的に重視するという企業が増加しており、我が国企業の事業戦略の変化がうかがえる。 - 経済産業省