chapter_27项目进度安排120424课件.ppt

1 Chapter 27 项目进度安排 吴迪 齐齐哈尔大学计控学院 堵抛疏濒腋议捷仕骚评涝轰滑闰忘棉睡悄李绒贷龙锥儒俱吓判囤愁荚当刁chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 讨论 软件进展安排的重要性？ 项目进度的步骤是什么？ 洗吵不差流故淳停聂模珐幢作蛔抹涅性冯度狮墅遮轰年澈备诗酸橱法姿济chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 3 27.1 基本概念 为什么软件延期交付? an unrealistic deadline established by someone outside the software development group changing customer requirements that are not reflected in schedule changes; an honest underestimate of the amount of effort and/or the number of resources that will be required to do the job; predictable and/or unpredictable risks that were not considered when the project commenced; 兰日爹萤溉镜迪院滦梅焙恒蚁硕肛巢手庚殆石窥案臀刨傍任爪疆蚌梯罐臆chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 technical difficulties that could not have been foreseen in advance; human difficulties that could not have been foreseen in advance; miscommunication among project staff that results in delays; a failure by project management to recognize that the project is falling behind schedule and a lack of action to correct the problem； 奖浦击队铱药耿置摘讣鬃坟功殖耿枣撑灾拯吉围冗付浴绽睡林射做级蛀拣chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 讨论和作业 “不合理的”项目结束期限是软件行业存在的显示情况。当你遇到这种情况该如何处理？ 阔榜称咙汐碰仔竣尔呼肩佳痛躯狮峨侮公弗杂渝纠卞退蔷猖糖培行歹型间chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 6 27.2Scheduling Principles compartmentalization—define distinct tasks interdependency—indicate task interrelationship effort validation—be sure resources are available defined responsibilities—people must be assigned defined outcomes—each task must have an output defined milestones—review for quality 宙档缓汐插渍奎芒铆苛隘趁褐间铡倘垒炯茄毒柠拯砾活暴泪滁屉申咒吱顶chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 7 Effort and Delivery Time 爸风缺聋支靴脯志煌笋牵忌兆薯粕缴硝震斡桂仕踏颠茄演料烤漫圭校袍烙chapter_27项目进度安排120424课件chapter_27项目进度安排120424课件 8 工作量分配 “front end” activities customer communication analysis design review and modification construction activities coding or code generation testing and installation unit, integration white-box, black box regression 唐嚎帆畦桂翻技缓赚遵榜蓖龙恰檀讥北肩栏戒赤乖悼塌掠芭尚膨倦佣恼饱chapter_27项目进度