The economic index is addressed using the fuzzy net presentvalueanalysis. And fuzzy variables are used to replace the uncertain variables in the strategic indices and risk indices.
用模糊净现金流表示经济指标，用模糊变量代替战略指标和风险指标中的不确定性变量。
2
Basic techniques of engineering economics, including net presentvalueanalysis, life-cycle costing, benefit-cost analysis, and other approaches to project evaluation are among the topics covered.
工程经济学的基本方法，包括净现值分析法、寿命周期成本法、收益-成本分析法和其它项目评估方法。
3
Finally, a case analysis is presented based on the above models and actuarial presentvalue.