Aiming at the irrationalities of static task scheduling in collaborative product development and design , a dynamic optimized scheduling method based on the least finish time is proposed 摘要针对协同产品开发中设计任务静态排序的不合理性，提出了一种基于最小化完工时间的任务优化动态排序方法。
The progress tab lists tasks and containers in order of execution and includes start and finish times , warnings , and error messages for each task and container , including the package itself “进度”选项卡按执行顺序列出任务和容器，而且还包括每个任务和容器的开始时间和结束时间、警告以及错误消息。
Ub grinding wheel provides heavy stock removal and uniformed surface finish , permitting automation of polishing operation which results in reducing finishing time and eliminating some of finishing processes Ub磨轮可提供较大的切削量以及均匀的表面研磨较果。可应用在自动化的抛光作业中，也因此可以减少精磨时间及减去一些制程中的步骤。
Firstly , we use the algorithm of the least cost scheduling in network plan . and a useful heuristic model described as the latest finish time model for resources scheduling is selected to solve the resource optimization , which based on investigation of heuristic methods of resource - constrained activity network 首先对网络计划进行工期? ?费用优化，然后基于对多资源约束网络计划的启发式方法分析的基础上，选择一种简捷实用的启发式方法? ?最迟完成时间( lft )判断法，对网络计划进行多资源综合协调。
The method ' s nature is to combine the construction experience with the net work program and in the priority of construction starting and make the alternatives that are possible to influence the finish time , providing a flexible technical preparation for adjusting errors actively later , which will supply a new measurement and insure both the rate of production and timing target accomplishment 该方法的实质是将施工经验与网络技术相结合，对可能影响工期的工程，做出尽可能多的施工方案和计划，在施工方案的编制阶段为以后的方案调整、动态监控和调整偏差提供了行之有效的技术准备，为动态施工网络计划应用在土建工程中，确保进度、工期目标的实现提供新的手段与方法。
What is more , based on the computing model of the finishing time per piece of flow shop scheduling in the parallel movement , the paper analyzes the subordinate function of its finishing time per piece in respective conditions of definite due date and fuzzy due date , and mutual relationship of two objective functions between minimization of delayed term and maximization of general satisfaction , pointing that the former is the subset of the latter . and representing the satisfaction level of the manager toward finishing time of the piece with the subordinate function of fuzzy due date , making general satisfaction level as objective function , the paper accordingly sets up a mathematical model in the condition of fuzzy due date , and designs a computer simulating system in light of genetic algorithm to carry on an emulation experiment 在平行顺序移动方式下flowshop调度问题的工件完工时间的计算模型基础上，分析了带固定交货期和模糊交货期时该问题的工件完工时间的隶属函数，及总拖期最小化和总满意度最大化这两个目标函数的相互关系，指出前者西南交通大学博士研究生学位论文第页问题是后者问题的一个子集，用每个工件模糊交货期的隶属函数表示决策者对该工件完工时间的满意度，以总满意度为目标函数，相应地建立了该问题下带模糊交货期的数学模型，设计了一个基于遗传算法的计算机模拟系统进行仿真试验，结果是令人满意的。
For this reason , this paper considers grid workflow as its research subject , and introduces survivability conception into schedule algorithms based on performance and qos . firstly , this paper proposes a schedule algorithm which considers both performance and survivability by modifying min - min , max - min and sufferage . it pursues the shortest finish time as well as survivability to avoid scheduling a task to an unreliable machine and to reduce the influence of machine malfunction on task 为此,本文把网格工作流作为研究对象,从基于性能和基于qos两个方面将生存性引入网格调度算法:第一,通过改造min - min 、 max - min 、 sufferage三种算法,给出了三个同时考虑性能和生存性的调度算法,避免将任务分配到可靠性比较低的节点上执行,从而有效地降低了节点失效对任务的影响。
