2. (15%) You have prepared the following schedule for a project in which the key resource is a tractor(s). There are three tractors available to the project. Activities A and D require one tractor to complete while activities B, C, E and F require 2 tractors. Develop a resource-constrained schedule in the loading chart that follows. Use the parallel method and heuristics given. Be sure to update each period as the computer would do. Record the early start (ES), late finish (LF) and slack (SL) for the new schedule. 4 C 8 2 2 2 0 A 4 6 4 10 Legend ES ID EF 1 4 5 SL SL 5 D 10 10 F 12 O 1 O 0 2 LS DUR LF O 0 B 5 5 5 10 10 2 12 Resource O 2 0 5 5 5 E 8 Use the following heuristics 2 2 2 Minimum slack Smallest duration 7 3 10 Lowest identification number ID RES DUR ES LF SL O 3 5 6 7 8 9 10 11 13 14 15 A B 2 5 C 2 4 D 5 E 2 3 F 2 2 Resources scheduled Resources available 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3Assignment 2 (Correction of Ch9 #2 question: "Normal Time" of activity C should be 6, not 4.) Please refer to below Word le to complete all questions (including clear schedule table, graph, numbering, calculation, and explanation required in each question) in either a Word or PDF le. Ions Part 1 (Ch8) Questions (15%) Given the network plan that follows, compute the early, late, and slack times. What is the project duration? Using any am you wish (e.g., trial and error), develop a loading chart for resources, Electrical Engineers (EE), and resource, Mechanical Engineers (ME). Assume only one of each resource exists. Given your resource schedule, compute the early, late, and slack times for your project. Which activities are now critical? What is the project duration now? Could something like this happen in real ME ----------- O 1 2 3 4 5 6 7 8 9 10 11 12 Fill in the times below for a resource activity schedule. IDIRES ES LS EF LF SL 1EE 2-EE Schedule m'l~ 3-ME 4-EE 5-ME Resource TEE 3 . (20%) Develop a resource schedule in the loading chart that follows. Use the parallel method and heuristics given. Be sure to update each period as the computer would do. Note: activities 2, 3, 5, and 6 use two of the resource skills. Three of the resource skills are available How has slack changed for each activity? Has the risk of being late changed? How? 1 3 5 3 2 3 4 4 8 1 2 2 2 1 3 3 4 8 8 6 10 O 1 O O 0 2 3 3 5 8 8 2 10 O 2 O Legend W 3 3 3 5 6 ES ID EF 2 2 SL RES SL 5 3 8 LS DUR LF Use the following heuristics: List the order in which your Minimum slack activities are scheduled Smallest duration Lowest identification number ID RES DUR ES LF SL O 2 3 4 5 6 7 8 9 10 11 12 13 1 O 3 2 2 3 O 3 2 4 8 5 3 8 5 2 3 6 2 2 Resources scheduled Resources available 3 3 3 3 3 3 3 3 3 3 3 3 3 What is the schedule slack for 1_ , 3. _, and 4 Which activities are critical now?Assignment 2 Part 2 (Ch9) Questions 1 . (25 points) Use the information contained below to compress one time unit per move using the least cost method. Reduce the schedule until you reach the crash point of the network. For each move identify what activity(ies) was crashed and the adjusted total cost. (i.e., Calculate the minimum direct cost when project is finished in 12 days, 1 1 days, 10 days, 9 days, as well as 8 days.) Note: The correct normal project duration, critical path, and total direct cost are provided. Crash Cost Maximum Normal Normal Act. (Slope) Crash Time Time Cost A 50 150 B 100 100 C 60 2 200 D 60 2 3 200 E 70 4 200 O - F O 150 D Initial 3 W project duration: 12 A F 3 1x C E Total direct cost: 1,000 4 42. (25 points) Use the information contained below to compress one time unit per move using the least cost method. Reduce the schedule until you reach the crash point of the network. For each move identify what activity(ie) was crashed and the adjusted total cost. (i.e., Calculate the minimum direct cost when project is nished in 13 days, 12 days, 11 days, as well as 10 days.) Note: Choose B instead of C and E (equal costs) because it is usually smarter to crash early rather than late AND one activity instead of two activities Crash Cost Maximum Normal Normal Act. (Slope) Crash Time Time Cost A 0 2 150 B 100 1 3 100 C 50 2 4 200 D 40 l 4 200 E 50 1 3 200 F 0 l 150 Initial project duration