The way to go is EVA (Earned value Analysis). You can create activity weightage from number of documents, total purchase cost and estimated manhours for engineering, procurement and construction respectively. For commissioning and documentation you can use 5% of the related construction activities (you can have more experienced guys guesses also). After all you can compare all of the LVL1 WBS levels with costs. Ex:
Enginnering: 500 USD (10 %)
Act 1A: 10 Drw (40 %)
Act 1B: 15 Drw (60 %)
Procurement: 2000 USD (40 %)
Act 2A: 1000USD (50 %)
Act 2B: 1000USD (50 %)
Construction: 2000 USD (40 %)
Act 3A: 100Mhr (20 %)
Act 3B: 400Mhr (80 %)
Commissioning&Documentation: 500 USD (10 %)
Act 4A: 25 Mhr (100 %)
Total: 5000 USD
Weightage %
1A: 10%*40% = 04%
1B: 10%*60% = 06%
2A: 40%*50% = 20%
2B: 40%*50% = 20%
3A: 40%*20% = 08%
3B: 40%*80% = 32%
4A: 10%*100%= 10%
Total: 100%
Then you can assign this resources to the activities. Now you can track your progress with this resource and EVA.
Thanks for the reply. If i do as per that, if i want to have more progress to show to the client , i can load more cost towards mobilisation activities which is the primafacie activity and it will take only 14 days to 1 month of contract.
so the client can catch me in this
regards,
ismail
Member for
18 years 4 months
Member for18 years4 months
Submitted by Nicolas Igersheim on Fri, 2009-08-21 08:54
You can have one weightage system that you will load to your activities.
Then, you assign the cost in wbs activity. In this way, whatever percentage you will have in your progress will be reflected in the percentage of wbs activity.
So now you will have a much between your progress and payment progress. This will also cover you question regarding testing and commissioning since the wbs activtiy will catch the testing and commissioning activity if it ongoing or completed.
Thank you,
Scarlett
Member for
17 years 3 months
Member for17 years3 months
Submitted by Samer Zawaydeh on Wed, 2009-08-19 14:12
This is an Excel spreadsheet. If you have a monthly invoice, then you update the progress in each Schedule at the end of each month. Then you multiply each Schedule by its weight percentage, 5%, 25%, etc.
Now we solved the progress percentage. We need to come to the time constraint. If you finish Schedule A before 3 days then you can not claim the money, but if you finish it after the 3 days limit, then you can claim the money.
Thanks for the reply, EVA Reports are used to find the progress after assigning the weightages, but i am struck in the first level og assigning the weightages.
1.Price Schedules - which is splitup of my project value
2.Payment terms - How the value will be paid to me
eg:10% advance
75% agianst supply, construction and erection
10% against handing over after commissioning
5% after defect laibility period of 1 yr
as stated above, after i complete my supply,construction and erection also i will be paid only 85% of the contract value. the without commssioning and running the plant i cannot claim my 100%.
You may maintain two weigtage systems if it is imperetive to have time based weigtage for internal monitoring. But I personally have never seen using time for weigtage factor calculation. It was mostly based on physical completion of the activity/work package.
What is linked with commissioning in the case you said. Nothing? which means your client has to pay the whole contract amount if you completed supply and construction. also the contractor gets complete amount without commmissioning. if that is the case then the project is 100% complete without commissioning (if i think from the contractors managements perspective). In that case contractor will not show interest in completing the commissioning. So there will be normally some cost provisions attached with commissioning. and in case of power projects a percentage of payment will be normally attached with commissioning and the further achieving of performance parameters (like full load performance etc)
Member for
16 years 7 months
Member for16 years7 months
Submitted by Gary Whitehead on Wed, 2009-08-19 04:08
How did you estimate the price when bidding for these projects? It may well be that this estimate is at a sufficiently detailed level to provide a basis for your weightings.
If not, go and talk to the guys who will actually be doing the work, ask them for manpower estimates, and use this as a basis for your weightings (while you’re there, ask them for duration estimates too to help build your project plan).
Thanks for the reply, but the problem we are facing is we dont have any timesheet or database system for manhours calculation and the projects we are dealing with is related to power generation and distribution systems.so it is difficult for us to assess this parameters.
Thanks for suggestion.It means that i should adapt two weightage system one for cost and one for time.
Case study:
For eg: I dont have any payments for commisssioning the plant. My payment terms are only against supply and construction. So if i finish the supply and construction then can i say that my project is 100% complete with out commissioning the plant eventhough it is under my scope.
Ismail
Member for
16 years 7 months
Member for16 years7 months
Submitted by Gary Whitehead on Tue, 2009-08-18 09:03
You don’t need to consider time when calculating weightages –it is irrelevant.
For each payment schedule, weight your activities according to manhours, concrete used, length of pipe laid, planned expenditure, or whatever is the most appropriate measure for that schedule. Time is very rarely an appropriate measure for progress weightings.
It is to be expected that sometimes you will complete a greater %age of work in a lower %of time, and visa versa. If progress and time elapsed were directly related, all your progress S-curves would be straight lines!
Regards,
Gary
Member for
19 years 11 months
Member for20 years
Submitted by Sreejish Vishnu on Tue, 2009-08-18 06:41
I dont think the cost weightages match exactly with the time. Because there could be high value items requiring very less time to execute. The construction of such items will require a very less duration, but those items will give a good invoice amount.
I think you can provide a weightage factor based on the cost of the items if you have to match with invoices. present that to client and use the time based weightages only for internal monitoring.
Member for
17 years 5 monthsRE: Financial Progress
Dear Ismail,
The way to go is EVA (Earned value Analysis). You can create activity weightage from number of documents, total purchase cost and estimated manhours for engineering, procurement and construction respectively. For commissioning and documentation you can use 5% of the related construction activities (you can have more experienced guys guesses also). After all you can compare all of the LVL1 WBS levels with costs. Ex:
Enginnering: 500 USD (10 %)
Act 1A: 10 Drw (40 %)
Act 1B: 15 Drw (60 %)
Procurement: 2000 USD (40 %)
Act 2A: 1000USD (50 %)
Act 2B: 1000USD (50 %)
Construction: 2000 USD (40 %)
Act 3A: 100Mhr (20 %)
Act 3B: 400Mhr (80 %)
Commissioning&Documentation: 500 USD (10 %)
Act 4A: 25 Mhr (100 %)
Total: 5000 USD
Weightage %
1A: 10%*40% = 04%
1B: 10%*60% = 06%
2A: 40%*50% = 20%
2B: 40%*50% = 20%
3A: 40%*20% = 08%
3B: 40%*80% = 32%
4A: 10%*100%= 10%
Total: 100%
Then you can assign this resources to the activities. Now you can track your progress with this resource and EVA.
Regards,
Safak
Member for
16 years 11 monthsRE: Financial Progress
Dear Mr.Nicolas,
Thanks for the reply. If i do as per that, if i want to have more progress to show to the client , i can load more cost towards mobilisation activities which is the primafacie activity and it will take only 14 days to 1 month of contract.
so the client can catch me in this
regards,
ismail
Member for
18 years 4 monthsRE: Financial Progress
Hi Ismail
We lack some information in order to answer you.
The projects stages per price schedules are strictly sequential, no overlap at all?
Who will establish project progress? You?
In such a case I suggest you weigh your activities
using cost percentages.
For instance, once you have finished first two activities,
project progress will be 25%
Invoicing will also be 25%.
Member for
16 years 3 monthsRE: Financial Progress
Dear Ismail,
You can have one weightage system that you will load to your activities.
Then, you assign the cost in wbs activity. In this way, whatever percentage you will have in your progress will be reflected in the percentage of wbs activity.
So now you will have a much between your progress and payment progress. This will also cover you question regarding testing and commissioning since the wbs activtiy will catch the testing and commissioning activity if it ongoing or completed.
Thank you,
Scarlett
Member for
17 years 3 monthsRE: Financial Progress
Dear Ismail,
This is an Excel spreadsheet. If you have a monthly invoice, then you update the progress in each Schedule at the end of each month. Then you multiply each Schedule by its weight percentage, 5%, 25%, etc.
Now we solved the progress percentage. We need to come to the time constraint. If you finish Schedule A before 3 days then you can not claim the money, but if you finish it after the 3 days limit, then you can claim the money.
Hope the information helps.
With kind regards,
Samer
Member for
16 years 11 monthsRE: Financial Progress
Dear gary,
Thanks for the suggestion.
ismail
Member for
16 years 11 monthsRE: Financial Progress
Dear Mike,
Thanks for the reply, EVA Reports are used to find the progress after assigning the weightages, but i am struck in the first level og assigning the weightages.
ismail
Member for
16 years 11 monthsRE: Financial Progress
Dear Vishnu,
Thanks for the reply.
But one more clarification.
let me explain the whole scenerio.
I have two things
1.Price Schedules - which is splitup of my project value
2.Payment terms - How the value will be paid to me
eg:10% advance
75% agianst supply, construction and erection
10% against handing over after commissioning
5% after defect laibility period of 1 yr
as stated above, after i complete my supply,construction and erection also i will be paid only 85% of the contract value. the without commssioning and running the plant i cannot claim my 100%.
so how to assign the weightages now.
ismail
Member for
19 years 10 monthsRE: Financial Progress
Hi Ismael
It seems to me that you are talking about a standard EVA report.
Best regards
Mike Testro.
Member for
19 years 11 monthsRE: Financial Progress
Dear Ismail,
You may maintain two weigtage systems if it is imperetive to have time based weigtage for internal monitoring. But I personally have never seen using time for weigtage factor calculation. It was mostly based on physical completion of the activity/work package.
What is linked with commissioning in the case you said. Nothing? which means your client has to pay the whole contract amount if you completed supply and construction. also the contractor gets complete amount without commmissioning. if that is the case then the project is 100% complete without commissioning (if i think from the contractors managements perspective). In that case contractor will not show interest in completing the commissioning. So there will be normally some cost provisions attached with commissioning. and in case of power projects a percentage of payment will be normally attached with commissioning and the further achieving of performance parameters (like full load performance etc)
Member for
16 years 7 monthsRE: Financial Progress
Ismail,
How did you estimate the price when bidding for these projects? It may well be that this estimate is at a sufficiently detailed level to provide a basis for your weightings.
If not, go and talk to the guys who will actually be doing the work, ask them for manpower estimates, and use this as a basis for your weightings (while you’re there, ask them for duration estimates too to help build your project plan).
Cheers,
G
Member for
16 years 11 monthsRE: Financial Progress
Dear Mr.gary,
Thanks for the reply, but the problem we are facing is we dont have any timesheet or database system for manhours calculation and the projects we are dealing with is related to power generation and distribution systems.so it is difficult for us to assess this parameters.
ismail
Member for
16 years 11 monthsRE: Financial Progress
Dear Mr.Sreejish,
Thanks for suggestion.It means that i should adapt two weightage system one for cost and one for time.
Case study:
For eg: I dont have any payments for commisssioning the plant. My payment terms are only against supply and construction. So if i finish the supply and construction then can i say that my project is 100% complete with out commissioning the plant eventhough it is under my scope.
Ismail
Member for
16 years 7 monthsRE: Financial Progress
You don’t need to consider time when calculating weightages –it is irrelevant.
For each payment schedule, weight your activities according to manhours, concrete used, length of pipe laid, planned expenditure, or whatever is the most appropriate measure for that schedule. Time is very rarely an appropriate measure for progress weightings.
It is to be expected that sometimes you will complete a greater %age of work in a lower %of time, and visa versa. If progress and time elapsed were directly related, all your progress S-curves would be straight lines!
Regards,
Gary
Member for
19 years 11 monthsRE: Financial Progress
I dont think the cost weightages match exactly with the time. Because there could be high value items requiring very less time to execute. The construction of such items will require a very less duration, but those items will give a good invoice amount.
I think you can provide a weightage factor based on the cost of the items if you have to match with invoices. present that to client and use the time based weightages only for internal monitoring.