Calculating the progress using P3.1

Mohammed,

in a very simple schedule with all activities on a line, you will have percentage for actual duration, actual work and actual cost the same;

but a project is not often as simple: imagine you have 2 or 3 activities occuring at the same time, the actual work % will be above the actual duration %

on the contrary, if you have large lags between activities, the actual duration % will be above the actual work %

I hope this helps

Alexandre

I guess everybody wants to know if how much profit they’ll get if they finish ahead of schedule. So it is always a combination of Time and Money.

Actually, your question "Which one is more accurate: duration, cost, or resources to calculate the progress percentage in p3" is somewhat vague. Are you asking on an activity basis or project overall basis for percent complete? And, the answer depends upon what is it you are measuring: cost, resources, or time. Mostly, I use schedules as a time management tool and thus, I am more interested in time. So, I am not really interested in percent complete, but rather I want to know how long will it take to finish, i.e. remaining duration. So, what is it you are really wanting to know?

OK percentage complete can be taken by any otf the method, cost and /or MH, Has anybody any idea how to show summerised percentage completion of whole project at the top of the column if you are using cost /MH as measure of progress? OR how do you show overall project progress of a EPC?

Cost is a result of resource use. Effectively it will weight the resources buy their cost per unit, making progress in more expensive items stand out more



thus, if you have been able to apply a cost to each of your resource use rates then cost should be the better measure.



I say should. In fact, we use resource hours without costs to track progress and we track it resource by resource as well as work area by work area and (often) work type by work type. Otherwise it can be easy to think that you are "on time" because you are ahead on an expensive item but behind on several cheap ones.



In the end. Cost is better but you need to have an eye on progress from seevral angles, not just overall or you can lose sight of the detail.

it depend to the scope of your project ;

if u want to calculate project for procurement , u should use cost of materials / equepment ,... and for engineering and construction the man/hour or quantity are practical. ( please be inform that for some of activities both of items will used )

it depend to the scope of your project ;

if u want to calculate project for procurement , u should use cost of materials / equepment ,... and for engineering and construction the man/hour or quantity are practical. ( please be inform that for some of activities both of items will used )