【正文】 2313Feb23 1越是無能的人，越喜歡挑剔別人的錯兒。 2023年 2月 13日星期一 4時 6分 3秒 04:06:0313 February 2023 1空山新雨后，天氣晚來秋。 04:06:0304:06:0304:06Monday, February 13, 2023 1不知香積寺，數(shù)里入云峰。 上午 4時 6分 3秒 上午 4時 6分 04:06: 沒有失敗，只有暫時停止成功！。 :06:0304:06:03February 13, 2023 1他鄉(xiāng)生白發(fā)，舊國見青山。 , February 13, 2023 雨中黃葉樹，燈下白頭人。 looping back to previous activities is not permitted 168。 probabilistic 168。 the nodes (events) are circles and the activities are arrows 168。 Subjective time estimates 168。 Useful in monitoring not only schedules, but costs as well Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1652 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 168。 Provides project documentation 168。 Useful at many stages of project management 168。 Expected project time (T) 168。 EF is earliest finish 168。 ES = Maximum EF of all predecessors for nonstarting activities Earliest Start and Finish Steps Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1642 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 168。 ES = 0 for starting activities 168。 Shortest time project can be pleted 168。 Earliest (EF) latest (LF) finish 168。 Expected time: t = (a + 4m + b)/6 168。 Optimistic times (a) 168。 Otherwise, puter programs get confused 168。 If the project must be finished in less than the scheduled amount of time, what is the way to acplish this at least cost? Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1632 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 The Six Steps Common to PERT CPM 1 Define the project and all of its significant activities or tasks 2 Develop relationships among the activities. (Decide which activities must precede and which must follow others.) 3 Draw the work connecting all of the activities 4 Assign time and cost estimates to each activity 5 Compute the longest time path through the work. This is called the critical path 6 Use the work to help plan, schedule, monitor, and control the project Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1633 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 2 4 Years Activity (Arrow) Register Receive diploma Project: Obtain a college degree (.) Event (Node) Attend class, study etc. 1 Event (Node) Network Terms Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1634 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 1 A B A B can occur concurrently 2 3 Activity Relationships Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1635 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 1 4 2 3 A B C A must be done before C D can begin D Activity Relationships Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1636 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 1 4 2 3 A B E C B C must be done before E can begin D Activity Relationships Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1637 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 168。 Each uses a different estimate of activity times PERT and CPM Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1631 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 Questions Which May Be Addressed by PERT CPM 168。 Developed in 1950抯 168。 Variance reports 168。 Total program labor curves 168。 Gantt chart 168。 Shows the relationship of each activity to others and to the project as a whole 168。 Identifying precedence relationships 168。 2.. Major tasks in the project 168。 Coordinates activities 168。 The project is temporary but critical to the anization Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1619 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 ?1995 Corel Corp. Acct. Eng. Eng. Mkt. Mgr. Project Organization 168。 Forming anization ?1995 Corel Corp. Project Planning Transparency Masters to acpany Operations Management, 5E (Heizer Render) 1618 ?1998 by Prentice Hall, Inc. A Simon Schuster Company Upper Saddle River, . 07458 Project Organization Works Best When 168。 Establishing objectives 168。 Planning goal setting, project definition, team anization 168。 High labor skills Project Characteristics Transparency Masters to acpany Operations Management, 5E (Heizer Rend