费用优化,即从网络计划各工作的持续时间和费用的关系中,依次找出既可缩短工期又使其直接费增加最少的工作,不断缩短其持续时间(消时),同时考虑间接费迭加的因素,求出成本最低时对应的最佳工期或按要求工期求得最低成本的计划安排。 Cost optimization, that is, from the relationship between the duration and cost of each network plan work, in order to identify shorten the construction period and increase their direct costs at least work, and continuously reduce its duration (time), taking into account the indirect costs Plus factors, find the lowest cost corresponding to the best time limit or the minimum cost of the project schedule.