Networks, scheduling and analysis

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Activity 3A Shutdowns in major asset intensive organisation are planned in line with Project Management techniques. The activities required for a small maintenance project are given in the table, based on maintenance delivery plan. Constraints are: No more than a total of 5 people are available. All the people are multi-skilled and inter-changeable Once one work is started, it needs to be finished the available people before they move to the next job If a job requires 3 people for 2 days then it needs three people and cannot be done with 2 people for 3 days. Overtime working is not allowed. Activity EFT LFT Float Duration (days) People required at the same time 3 3 2 4 3 1-2 1-3 2-4 2-5 3-4 4-5 4 5 3 3 4 2 4 3A.1 Complete the table and draw a network for the job. Show the critical path and its length. Total Float Earliest Earliest Latest Latest Activity Duration Start Time Finish Time Start Time Finish Time EST EFT LST LFT 1-2 3 0 3 2 5 1-3 4 0 4 0 4 2-4 3 3 6 5 8 2-5 3 3 6 9 12 3-4 4 4 8 4 8 4-5 4 8 12 8 12 ONON 1-2-5=3+3=6 1-2-4-5-3+3+4=10 CP= 1-3-4-5=4+4+4=12 Figures in Boxes are resources needed. 2 3 32.2 Show with a bar chart how you would allocate the labour to jobs. CP= 1-3-4-5=4+4+4=12 Base line without any resources constraints Activity People Required Duration Day! |Daya JDays Day Days Day DayZ Days Dave |Day10 Dayli JDay12 3 A1-2 A1- 3 4 3 2 2 2 4 2 4 5 3 2 4 5 A2-5 A4 14-5 5 3 S 31 4 4 11 People needed People Awable Short/Surplus 12 SU 12 SI 21 SI 0 With resources constraints of 5 workers per day Activity People Duration pays pays Daydo Dall Day12y3 Daye wys Day Day 7 Days 2 21 A12 A1-3 A2-4 A25 3 2 4 S 3 2 3 4 3 3 4 4 SI 5 People needed People Avalable Short Surplus si 2 3 SI 21 5 41 5 41 5 SI 5 5 5 SI 3A.3 The project proceeds well, BUT at the start of Day 6, one worker calls by phone with a medical certificate for 3 days off. Refine the schedule to show how this affects the project duration. (Note: you cannot go back in time! Reconfigure the plan from Day 6 onwards). With resources constraints of 5 workers per day Activity People Duration Days Dard Days Det Day 10 Dayli Day 12 Day 13 [Oryza (Day15 102,16 10ay17 10ay 28 3 A12 A13 A2:5 2 4 5 3 2 5 3 4 4 MS 21 11 21 21 21 SI . People needed People Avatate Short Surplus 2 21 51 4 4 51 SU . 21 . . . Activity 3A Shutdowns in major asset intensive organisation are planned in line with Project Management techniques. The activities required for a small maintenance project are given in the table, based on maintenance delivery plan. Constraints are: No more than a total of 5 people are available. All the people are multi-skilled and inter-changeable Once one work is started, it needs to be finished the available people before they move to the next job If a job requires 3 people for 2 days then it needs three people and cannot be done with 2 people for 3 days. Overtime working is not allowed. Activity EFT LFT Float Duration (days) People required at the same time 3 3 2 4 3 1-2 1-3 2-4 2-5 3-4 4-5 4 5 3 3 4 2 4 3A.1 Complete the table and draw a network for the job. Show the critical path and its length. Total Float Earliest Earliest Latest Latest Activity Duration Start Time Finish Time Start Time Finish Time EST EFT LST LFT 1-2 3 0 3 2 5 1-3 4 0 4 0 4 2-4 3 3 6 5 8 2-5 3 3 6 9 12 3-4 4 4 8 4 8 4-5 4 8 12 8 12 ONON 1-2-5=3+3=6 1-2-4-5-3+3+4=10 CP= 1-3-4-5=4+4+4=12 Figures in Boxes are resources needed. 2 3 32.2 Show with a bar chart how you would allocate the labour to jobs. CP= 1-3-4-5=4+4+4=12 Base line without any resources constraints Activity People Required Duration Day! |Daya JDays Day Days Day DayZ Days Dave |Day10 Dayli JDay12 3 A1-2 A1- 3 4 3 2 2 2 4 2 4 5 3 2 4 5 A2-5 A4 14-5 5 3 S 31 4 4 11 People needed People Awable Short/Surplus 12 SU 12 SI 21 SI 0 With resources constraints of 5 workers per day Activity People Duration pays pays Daydo Dall Day12y3 Daye wys Day Day 7 Days 2 21 A12 A1-3 A2-4 A25 3 2 4 S 3 2 3 4 3 3 4 4 SI 5 People needed People Avalable Short Surplus si 2 3 SI 21 5 41 5 41 5 SI 5 5 5 SI 3A.3 The project proceeds well, BUT at the start of Day 6, one worker calls by phone with a medical certificate for 3 days off. Refine the schedule to show how this affects the project duration. (Note: you cannot go back in time! Reconfigure the plan from Day 6 onwards). With resources constraints of 5 workers per day Activity People Duration Days Dard Days Det Day 10 Dayli Day 12 Day 13 [Oryza (Day15 102,16 10ay17 10ay 28 3 A12 A13 A2:5 2 4 5 3 2 5 3 4 4 MS 21 11 21 21 21 SI . People needed People Avatate Short Surplus 2 21 51 4 4 51 SU . 21