Then, scale statistic and counted by thousands of delivered instruction ( KDSI ), Effort Adjustment Factor(EAF) calculated according to COCOMO model was done, mean value also acted as this project estimation reference. 然后统计两个项目的规模,以千代码行为单位,利用COCOMO模型计算出工作量调整因子,并将平均值也作为本项目预估的参考数据。