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Change in scope of works and schedule

5 replies [Last post]
Tue, 2009-09-29 01:52
ismail khan
User offline. Last seen 14 years 44 weeks ago. Offline
Joined: 9 Nov 2008
Posts: 21
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Hello Master Planners,

I just wanna know what is the standard practice if for example i have a MSP detailed schedule loaded with wt. % on each activites and all my planned and earned percentage are generated from my updated schedule and then suddenly a change of scope of works say there is a activity called top over hauling of engines is changed to complete overhauling of the engines and the variation order has been issued to the contractor with a time extension of 2 months.Now what will be the impact in the baseline schedule and the updated schedule.Is it advisible to change the baseline schedule.

Before issuing the variation order the planned progress was 92% and the actual progress is 45%.

Please advice.
Thanks all....
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Replies

Thu, 2009-10-01 14:38
#1
Samer Zawaydeh
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Joined: 3 Aug 2008
Posts: 1664
Groups: Civil Engineering, Regional Representatives
Dear ismail,

I agree with Gary that you need to revise the Program of works because the actual percentage completed is much less than the planned. I am not sure about the sequence of activties that you want to complete in order to deliver the new scope of work.

If the activities are not changed much, I would update the schedule by adding the new scope and shifting the contact end date to the new end date with the approved time extension. Basically this should give you more float to the other activties as well.

With kind regards,

Samer
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Tue, 2009-09-29 07:32
#2
Gary Whitehead
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Joined: 24 Mar 2009
Posts: 1215
Groups: Building Information Modelling, Content Moderators, Petro-Chem / Oil & Gas, The GrapeVine
Ismail,

Since the weightings of all the activities in your original baseline will be lowered, Actual weightages in previous months will be lower than previously reported.
However since the total contract value has increased, the earned value / value of work done should not have changed.

This can require some explanation / education to the client if he sees his overall % complete drop significantly, but that’s what happens when you ask for more work to be done in the middle of a contract.

Cheers,

G
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Tue, 2009-09-29 07:10
#3
ismail khan
User offline. Last seen 14 years 44 weeks ago. Offline
Joined: 9 Nov 2008
Posts: 21
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Dear Gary,

Thanks for the reply. But please suggest what will happen to the actual weightages.Again i will have to update the schedule but how will i get the actual progress month wise to generate "S" Curve. After making a new schedule i will update and get the overall actual weightage. but what will happen to the actual values in the earlier months.

Please advice

regards,

Ismail
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Tue, 2009-09-29 04:17
#4
Mike Testro
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Joined: 14 Dec 2005
Posts: 4420
Groups: Building Information Modelling, Content Moderators, GPCCAR Editors
Hi Ismail

Make sure you save the old baseline and start a new file before making any changes.

Best regards

Mike Testro
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Tue, 2009-09-29 02:48
#5
Gary Whitehead
User offline. Last seen 6 years 2 weeks ago. Offline
Joined: 24 Mar 2009
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Groups: Building Information Modelling, Content Moderators, Petro-Chem / Oil & Gas, The GrapeVine
Absolutely you should change the baseline schedule.

You’ve changed the scope, and the completion date. The original baseline is useless going forward.

Since the contractor is so far behind plan too, I would hope the revised baseline would also in effect be a recovery schedule.

Since scope has increased, your wieghtages will need to change to reflect this.

Cheers,

G
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