（ ）不是常用的缩短项目工期的方法。
- A.使用高素质的资源或经验更丰富的人员
- B.改进方法和技术以提高工作效率
- C.采用资源平滑技术，使项目资源需求不超过预定的资源限制
- D.采用快速跟进技术，将顺序进行的活动改为部分并行
正确答案及解析
正确答案
解析
本题考查缩短工期的方法。参考《系统集成项目管理工程师教程》第二版P320控制进度
通常可用以下一些方法缩短活动的工期：
（1）赶工，投入更多的资源或增加工作时间，以缩短关键活动的工期；
（2）快速跟进，并行施工，以缩短关键路径的长度；
（3）使用高素质的资源或经验更丰富的人员；
（4）减小活动范围或降低活动要求；
（5）改进方法或技术，以提高生产效率；
（6）加强质量管理，及时发现问题，减少返工，从而缩短工期。
资源平滑（Resource Smoothing）。对进度模型中的活动进行调整，从而使项目资源需求不超过预定的资源限制的一种技术。 相对于资源平衡而言，资源平滑不会改变项目关键路径，完工日期也不会延迟。也就是说，活动只在其自由浮动时间和总浮动时间内延迟。因此，资源平滑技术可能无法实现所有资源的优化。故C选项不是缩短工期的方法。
资源平衡和资源平滑的比较：
资源平衡（Resource Leveling）：为了在资源需求与资源供给之间取得平衡，根据资源制约对开始日期和结束日期进行调整的一种技术。往往会导致关键路径改变，通常是延长
资源平滑（ Resource Smoothing） 对进度模型中的活动进行调整，从而使项目资源需求不超过预定资源限制的一种技术。不会改变关键路径，完工日期不会延迟。可能无法实现所有资源的优化。
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