Give typed full explanationNot hand written Question ist✓ SavedAll of the following can be said about networkdiagrams EXCEPT:For making a network diagram, a horizontalbar is drawn for each activity to show itssequence and duration.In a critical path, the order and duration ofthe sequence of activities directly affect thecompletion date of a project.A sequence of connected activities thatproduce the longest overall time period isreferred to as critical path.The latest expected completion time refersto the time in which an activity can becompleted without delaying the project.

A : For making a network...... This is false because there is no such constraint to represent a…

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Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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(4) Reduce the schedule until you reach the crash point (not possible to crash further) of the network. Record the crashed activities and the crash costs at each iteration. Maximum Crash Time Activity Predecessor A B C D E F G H I None A A B, C C B F D, E G, H Crash Cost (Slope) 0 100 60 40 0 30 20 60 200 0 1 1 1 0 2 1 TNT 2 1 Normal Time 3 4 3 4 2 3 2 4 2
QUESTION 16 Refer to the project addressed in questions 21-30 of your Quiz 1 and associated worked solutions used in our review session. The following table of probabilistic time estimates (in weeks) and activity predecessors are provided for the project. Activity A B D E Table 1 Reference: Ref 1 optimistic most likely time time 3 4 2 6 5 5 8 3 9 9 pessimistic time 7 10 5 12 15 Activity Predecessor A A B, C D Using Table 1, which of the following statements are correct? O A. The latest finish time of activity B is the same as its earliest finish time O B. Activity A is critical because it is the starting activity in the project O C. Activity D must be critical because it is the only predecessor of activity E O D. Answers A and B are correct O E. Answers A and C are correct
Activity (day) Predecessor(s) A 6 none B 5 none C 3 A D 2 A E 1 B F 7 C G 9 D E, H 11 F,G 1. Draw the network diagram 2. Determine the critical path 3. Find earlist and latest time of each event of the project in the network diagram
A Project has been defined to contain the following list of activities along with their required times for completion Table 2 Task Task Name Duration (weeks) Predecessors 1 Collect Requirements 4 2 Analyze processes 2 1 3 Analyze data 2 2 4 Design Process 6 2 5 Design Data 3 3 6 Design Screens 2 3,4 7 Design Reports 4 4,5 8 Code 5 6,7 9 Test and Document 7 7 10 Deploy 2 8,9 11 Project Review 2 10 a) Manually draw a network diagram to represent the activities shown in Table 2 b) How many weeks does it take to complete the project? c) What tasks are part of the critical path?
Q1: Given the information below, draw the network (AOA) and find the probability of finishing the job in (40) weeks? Solve using PERT. Activity notation Weeks 1-2 2-3 2-4 2-5 3-6 4-7| 5-7 6-8 7-8 8-9 2,7,8 5,6,9 3,7,8 4,5,6 6,9,10 6,8,11 4,6,7 5,7,10 4,8,9 4,7,9 [50%]
1- IF the (Most Optimistic time (least time) to, Most likely time tm, Most Pessimistic (Greatest time) tp) are shown in the network bellow. Calculate the variance and the expected time for each activity. 3-6-10 1 6-7-12 7-9-12 2 3 8-12-17 10-12-15 8-13-18 5 6 7 12-14-15 8 13-16-19 10-13-17 4-7-10 10-12-14 6-8-12
Follow up to previous question: 3) A company decides to plan a project, with activities, precedences and random duration statistics given in the following table: Activity Immediate Predecessors Duration Minimum (weeks) Duration Mode (weeks) Duration Maximum (weeks) A none 2 5 9 B A 1 6 8 C A 3 5 12 D B 2 4 12 E B, C 4 6 8 F B 6 7 8 G D, E 1 2 6 H F, G 4 6 16 Questions: 1) What method should be used? Compute the mean and variances for each activity and add them to the table above. 2)Draw the project network and label the arcs with the activity name. 3) Assuming that the critical path is AàBàP1àEàGàH, compute the probability that this path duration is between 28 weeks and 32 weeks. 4) Assuming that the critical path is AàBàP1àEàGàH, compute the number of weeks within which the project will be completed with probability 0.95.
Preceding Activity Crashed Cost per week $600 $700 $400 Activity Normal Completion Time (week) Crashed Completion time (week) A 7 5 B 12 10 A 8 2 $800 $300 $500 E C, D 5 4 F E 9 8 D. F 10 10 i. Draw the network diagram linking all the activities in a way that it shows if there exist any preceding activity/activities before starting each of the mentioned activities in the above table, ii. Showing the earliest start time, the earliest finish time, the latest start time and the latest finish time of each of the activities in the project determine the completion time of the project and the critical path. ii. Find the slack time (delay time) of each of the activities, the critical and the non-critical activities. Find the minimum possible completion time of the project by considering the crashed completion times and the minimal total cost of that crashing the project. iv. Need proper handwritten answers. Thank you!
Please assist in detailed explanation on the following question in Project Scheduling: 1) - A company decides to plan a project, with activities, precedence and deterministic durations given in the following table: Activity i Duration (days) Immediate Predecessors A 32 none B 21 none C 30 none D 45 A E 26 A, B F 28 C G 20 E, F Questions: 1.1) What method should be used? Using only one pseudo-activity, draw the project network, with arcs labeled by the activity name and duration. 1.2) Compute and display in a table the earliest and latest starting and finishing times, as well as slack, for each activity, and identify the critical path(s). 1.3) Draw a Gantt chart of the schedule, based on earliest starting times 1.4) Which activities must be completed by day 60 to ensure that the project is not delayed?
The following Table 1 contains a list of activities, with precedence requirements and crash costs. All start and finish times and crash costs are on a per-week basis. Table 1 Activity Predecessor Crash Time Normal Cost (Weeks) Normal Time Crash Cost (Weeks) $ A 10 7 2000 2600 A 12 1500 2000 C A 16 12 2200 300 D 8 7 2500 3000 E C 13 10 1950 2275 F D 9. 8 800 1000 G E, F 24 29 3650 4000 H G 17 14 1200 1800 a) Determine the project cost and duration without crashing. b) Determine the least expensive project cost if the duration is to be 10% shorter than normal project duration. c) Determine the least expensive project cost if the duration is to be 20% shorter than normal project duration.
1- The network below represents a project being analyzed by Critical Path Methods. Activity durations are A = 5, B =2, C = 12, D = 3, E = 5, F = 1, G = 7, H = 2, I= 10, and J= 6. E Start 10 a. What task must be on the critical path, regardless of activity durations? b. What is the duration of path A-B-E-H-J? c. What is the critical path of this network? d. What is the length of the critical path? e. What is slack time at activity H? f. What is the Late Finish of activity H? g. If activity C were delayed by two time units, what would happen to the project duration? 2- Three critical path activities are candidates for crashing on a CPM network. Activity details are in the table below. 27°C Mostly s... ^ O )
b) Table Q1a shows the logic for a particular project. Time (days) Activity A Precedence 2 В A 3 C A 4 D A E B 3 F B,C H E 5 F 4 J H 3 G,H, I J,K K 4 L Table Q1a. Logic for project activities A through L. (i) Construct a Network Diagram showing the various logical activity relationships from this information. (ii) Perform a forward and backward pass completing the activity boxes. (ii) Highlight the critical path on your diagram and state the earliest project completion time. c) Provide an example of an ethical dilemma in engineering project management and explain how a code of ethics might be used to help the project manager in the decision making process.

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