【正文】 ion frame 3 wk. 3 wk. 4 wk. 2 wk. 6 wk. Do interior work Landscape Roof Buy shrubs etc. Critical path is longest path: 12 weeks. Critical Path in Network Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1644 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 12 Fdn frame 13 Buy shrubs 23 Roof 24 Interior work 34 Landscape 4 5 6 7 8 9 1 0 1 1 1 2 3 2 1 Activity Build House Project Gantt Chart Earliest Start and Finish Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1645 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 12 Fdn frame 13 Buy shrubs 23 Roof 24 Interior work 34 Landscape 4 5 6 7 8 9 1 0 1 1 1 2 3 2 1 Activity Build House Project Gantt Chart Latest Start and Finish Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1646 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 168。 Sum of critical path activity times, t 168。 Sum of critical path activity variances, v Used to obtain probability of project pletion! Project Times Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1647 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 ?1995 Corel Corp. PERT Probability Example You抮 e a project planner for General Dynamics. A submarine project has an expected pletion time of 40 weeks, with a standard deviation of 5 weeks. What is the probability of finishing the sub in 50 weeks or less? Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1648 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 T = 40 s = 5 50 X Normal Distribution Z X T = = = s 50 40 5 2 0 . m z = 0 s Z = 1 Z Standardized Normal Distribution Converting to Standardized Variable Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1649 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 m z = 0 s Z = 1 Z Z .00 .01 .02 .50000 .50399 .50798 : : : : .97725 .97784 .97831 .98214 .98257 .98300 Standardized Normal Probability Table (Portion) Probabilities in body .97725 Obtaining the Probability Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1650 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 Benefits of PERT/CPM 168。 Mathematically simple 168。 Gives critical path slack time 168。 Useful in monitoring costs Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1651 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 Advantages of PERT/CPM 168。 Applicable to a wide variety of projects and industries 168。 Assumes clearly defined, independent, stable activities 168。 Activity times (PERT) follow beta distribution 168。 Overemphasis on critical path Limitations of PERT/CPM Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1653 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 PERT and GERT: A Comparison 168。 all activities must take place 168。 GERT 168。 the nodes indicate the nature of the branch 168。 deterministic Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1654 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 PERT and GERT: A Comparison 168。 all activities in the project must be successfully pleted 168。 GERT 168。 looping back to previous activities is permitted 靜夜四無(wú)鄰，荒居舊業(yè)貧。 04:06:0304:06:0304:062/13/2023 4:06:03 AM 1以我獨(dú)沈久，愧君相見(jiàn)頻。 04:06:0304:06:0304:06Monday, February 13, 2023 1乍見(jiàn)翻疑夢(mèng)，相悲各問(wèn)年。 2023年 2月 13日星期一 上午 4時(shí) 6分 3秒 04:06: 1比不了得就不比，得不到的就不要。 2023年 2月 13日星期一 4時(shí) 6分 3秒 04:06:0313 February 2023 1做前，能夠環(huán)視四周；做時(shí)，你只能或者最好沿著以腳為起點(diǎn)的射線向前。 , February 13, 2023 很多事情努力了未必有結(jié)果，但是不努力卻什么改變也沒(méi)有。 :06:0304:06Feb2313Feb23 1世間成事，不求其絕對(duì)圓滿，留一份不足，可得無(wú)限完美。 :06:0304:06:03February 13, 2023 1意志堅(jiān)強(qiáng)的人能把世界放在手中像泥塊一樣任意揉捏。 2023年 2月 上午 4時(shí) 6分 :06February 13, 2023 1少年十五二十時(shí)，步行奪得胡馬騎。 上午 4時(shí) 6分 3秒 上午 4時(shí) 6分 04:06: 楊柳散和風(fēng)，青山澹吾慮。 04:06:0304:06:0304:062/13/2023 4:06:03 AM 1越是沒(méi)有本領(lǐng)的就越加自命不凡。 04:06:0304:06:0304:06Monday, February 13, 2023 1知人者智，自知者明。 :06:0304:06:03February 13, 2023 1意志堅(jiān)強(qiáng)的人能把世界放在手中像泥塊一樣任意揉捏。 2023年 2月 上午 4時(shí) 6分 :06February 13, 2023 1業(yè)余生活要有意義，不要越軌。 上午 4時(shí) 6分 3秒 上午 4時(shí) 6分 04:06: MOMODA POWERPOINT Lorem ipsum dolor sit, eleifend nulla ac, fringilla purus. Nulla iaculis tempor felis amet, consectetur adipiscing elit. Fusce id urna blanditut cursus. 感 謝 您 的 下 載 觀 看 專家告訴