to analyze the manpower required to perform a job, it is necessary to consider quantities of deliverables (drawings, fabrication/installation of equipment/material) and the rate for it (quantities/m-h).
Considering the case for a contractor that will participate in the construction, key indexes are production rates.
The histogram will show the total required manpower (in general, direct manpower) and its distribution along the construction time. A feaseble distribution is the Normal/Gauss (backloaded distribution -like Beta- are risky). Here it is relevant to check the other aspect you mentioned (shift, m-h/day, etc).
When construction is underway, productivity is a key index (performance factor, when considers the EV and Actual m-h).
regards
Member for
1 year 5 months
Member for1 year5 months
Submitted by lb*****@g***** on Sun, 2024-07-14 23:30
Short answer - at the start of the project you cannot predict the accuracy of the contractors estimates other than by asking intelegent questions.......
BUT once work has started, provided you have reliable data you can assess if the current levels of productivity are adequate. There are four data points:
The planned amount of work at a point in time
The actual amount achieved at the same point
The planned effort (man-days)
The actual effort (man-days)
Then you can answer these questions:
First question = are the people deployed doing enough work?
Second question = are the planned numbr of people working on the job?
Third question = What are the consequences of the current level of production?
The answer to Q3 is key, you can use Work Performance Management (WPM) to get the answer:
Perhaps more than any other environment I have worked in, productivity is an essential component. 7 x 12-hour days result in how much actual work? I amused to 7 productive hours a day. How is this productivity reflected in the histogram? Do they have historical data to justify their productivity?
Member for
14 years 7 monthsHi:to analyze the manpower
Hi:
to analyze the manpower required to perform a job, it is necessary to consider quantities of deliverables (drawings, fabrication/installation of equipment/material) and the rate for it (quantities/m-h).
Considering the case for a contractor that will participate in the construction, key indexes are production rates.
The histogram will show the total required manpower (in general, direct manpower) and its distribution along the construction time. A feaseble distribution is the Normal/Gauss (backloaded distribution -like Beta- are risky). Here it is relevant to check the other aspect you mentioned (shift, m-h/day, etc).
When construction is underway, productivity is a key index (performance factor, when considers the EV and Actual m-h).
regards
Member for
1 year 5 monthsHello MS,Please following
Hello MS,
Please following below steps to verify & ensure the contractor has enough people:
1. Review Manpower Histogram.
2. Detailed Manpower Requirements.
3. Crosscheck with Project Requirements.
4. Consider Skill Requirements.
5. Historical Data and Experince.
6. Communication and Monitoring.
7. Contractual Agreements.
Thanks,
Member for
24 years 9 monthsShort answer - at the start
Short answer - at the start of the project you cannot predict the accuracy of the contractors estimates other than by asking intelegent questions.......
BUT once work has started, provided you have reliable data you can assess if the current levels of productivity are adequate. There are four data points:
The planned amount of work at a point in time
The actual amount achieved at the same point
The planned effort (man-days)
The actual effort (man-days)
Then you can answer these questions:
First question = are the people deployed doing enough work?
Second question = are the planned numbr of people working on the job?
Third question = What are the consequences of the current level of production?
The answer to Q3 is key, you can use Work Performance Management (WPM) to get the answer:
https://mosaicprojects.com.au/PC-3-10-WPM.php#WPM-Overview
Member for
21 years 8 monthsMember for
9 years 8 monthsPerhaps more than any other
Perhaps more than any other environment I have worked in, productivity is an essential component. 7 x 12-hour days result in how much actual work? I amused to 7 productive hours a day. How is this productivity reflected in the histogram? Do they have historical data to justify their productivity?