You are correct - both the methods I suggested require a critical path.
If the completed work has been calculated by "progress complete %" up to a dated data line then any logic left of the line becomes irrelevant.
Logic to the right should remain in place.
If that is your situation then the time impact method for future work should be OK.
If you cannot remove the progress % on the completed tasks and restore the logic then you will have to rely on an As Built v As Planned method whereby the Planned durations are compared to the As Built durations to show the degree of delay that has occurred.
This will not show cause and effect and becomes a global claim.
If the as built information is complete then you can attempt a collapsed as built method but this is very subjective and does not show concurrency.
Your book will be purchased! First may i ask, does Time Impact Analysis not rely on Critical Path Method documentation? My understanding is that it is. In my assignment i only have baselines and activitiy durations, there are phases of the project where a critical path has not been defined only activity durations are stated.
Member for
19 years 10 monthsHi EssYou are correct - both
Hi Ess
You are correct - both the methods I suggested require a critical path.
If the completed work has been calculated by "progress complete %" up to a dated data line then any logic left of the line becomes irrelevant.
Logic to the right should remain in place.
If that is your situation then the time impact method for future work should be OK.
If you cannot remove the progress % on the completed tasks and restore the logic then you will have to rely on an As Built v As Planned method whereby the Planned durations are compared to the As Built durations to show the degree of delay that has occurred.
This will not show cause and effect and becomes a global claim.
If the as built information is complete then you can attempt a collapsed as built method but this is very subjective and does not show concurrency.
Best regards
Mike Testro
Member for
12 years 1 monthThanks Mike, Your book will
Thanks Mike,
Your book will be purchased! First may i ask, does Time Impact Analysis not rely on Critical Path Method documentation? My understanding is that it is. In my assignment i only have baselines and activitiy durations, there are phases of the project where a critical path has not been defined only activity durations are stated.
Thanks.
Member for
19 years 10 monthsHi EssI am using UK
Hi Ess
I am using UK definitions not US - see SCL Protocol 2002 Chapter 4.
For completed work it depends on the quality of your as built records - if they are complete then a Time Impact Analysis will work.
For work that is in progress but delay events will impact some time in the future then an Impacted as Planned method is required.
These are all described in my ebook Principles of Delay Analysis - download from my website www.expertdelayanalysis.com for £25.00.
Best regards
Mike Testro