I always put in my report how many days the project (RC Works) is ahead or behind. Me and the client agreed to determine that by comparing the planned planned concrete quantity usage against actual concrete quantity usage. We have been doing that for a couple of months now.
But now the client requested that we change the way we determine it. He wants me to compare the contract completion date and the forecast completion date. Ofcourse I will get that from the baseline programme updates, which is update every week.
The problem is, if I'm making a straight-forward update, no re-sequencing, no change in predecessors/sucessors, etc., it will be very easy to say if we are ahead or behind by comparing the completion key date to the forecast.
But everytime I update, there is always re-sequencing works, change in site works execution, reduce in float time, etc. Because of that I can always maintain the completion key date same as forecast completion (we are still in the early stage so it is easy to do that for now).
So eventhough we are behind by a week or two in physical works (concrete quantity usage), i can still show in the programme that we can still meet the completion key date so there will be no delay at all.
How to explain that to the client.