The concepts of planned improved increment , actual improved increment and possibility factor of competitive seating arrangement on the customer requirements were introduced as an exact measurement of the enterprise ' s desire to improve product competitiveness , and then the formulas of calculating the correct factor of the fundamental importance ratings were developed 通过引进顾客需求竞争位次的计划改进增量、实际改进增量和可能性因子等概念来表征企业改进产品竞争力的意愿,进而提出了基本重要度的修正因子计算公式。