Project is calculated in the following manner: first, all progress expressed in "percent complete" is posted against every task. That percent is applied towards a "relative weight" which is a percentage calculated on the basis of the manhour estimates for each activity against the total manhours for that task.
So, the "percent complete" for a task is a calculated figure, which is called a "weighted percentage". This individual "percent complete" for every task is then applied to a "relative weight" now calculated on the basis of the total manhours for every work order included in the report. The overall "percent complete" is likewise a "weighted" percentage.
It is easy to see that any errors in reporting progress would be normally small enough as to not influence the overall progress in any significant manner. At any given time during the turnaround, anywhere from 20 to 30 percent of the work orders may be active (being worked). Of these, less than half have activities in progress (in other words, not completed), which may be incorrectly evaluated and reported. The impact of such inaccuracies in progress evaluation are generally negligible: a twenty percent error against an activity which weighs in at 1 percent or less of the overall scope is insignificant.
But when an error against a major activity for a large task occurs, the impact can be noticeable. This can happen in situations where the work scope changes (for example, refractory repairs in heaters or large vessels such as an FCC reactor/regenerator in my industry).
my answer is yes, Rob is right considering how the software (P6) works, and yes it (weight) is required if you want to measure how your activities / WBS worth.
How? there are several ways, maybe Carmen can elaborate fluently.
Member for
17 years 3 months
Member for17 years3 months
Submitted by Riyadh Yahia on Fri, 2008-08-08 15:12
Thanks for your reply I got your idea about the weight, so one remain question is, Do I need it in P6 or I can get the same values and information directly from P6 ? and How ?
best regards
Member for
21 years 4 months
Member for21 years4 months
Submitted by Carmen Arape on Fri, 2008-07-25 09:45
Member for
17 years 4 monthsRE: what is weight?
In additional,
Project will calculate 3 types of %Complete.
%Complete. This calculates %Complete for each individual task weighted by
duration (%Complete*Duration)
%WorkComplete. This calculates the sum of %WorkComplete*Work for each task.
It is weighted by Work.
Physical%Complete. This calculates the sum of Physical%Complate*(Budgeted
Cost of Work Scheduled) it is based on money (essentiall). This requires
resources to be assigned with $/hr in the work rate. You also need a
baseline.
Member for
17 years 4 monthsRE: what is weight?
Project is calculated in the following manner: first, all progress expressed in "percent complete" is posted against every task. That percent is applied towards a "relative weight" which is a percentage calculated on the basis of the manhour estimates for each activity against the total manhours for that task.
So, the "percent complete" for a task is a calculated figure, which is called a "weighted percentage". This individual "percent complete" for every task is then applied to a "relative weight" now calculated on the basis of the total manhours for every work order included in the report. The overall "percent complete" is likewise a "weighted" percentage.
It is easy to see that any errors in reporting progress would be normally small enough as to not influence the overall progress in any significant manner. At any given time during the turnaround, anywhere from 20 to 30 percent of the work orders may be active (being worked). Of these, less than half have activities in progress (in other words, not completed), which may be incorrectly evaluated and reported. The impact of such inaccuracies in progress evaluation are generally negligible: a twenty percent error against an activity which weighs in at 1 percent or less of the overall scope is insignificant.
But when an error against a major activity for a large task occurs, the impact can be noticeable. This can happen in situations where the work scope changes (for example, refractory repairs in heaters or large vessels such as an FCC reactor/regenerator in my industry).
Member for
18 years 6 monthsRE: what is weight?
Hi,
In Cost Engineering Terminology:
WEIGHTS – is the numerical modifiers used to infer importance of commodities in an aggregative index.
Arnold
Member for
19 years 1 monthRE: what is weight?
my answer is yes, Rob is right considering how the software (P6) works, and yes it (weight) is required if you want to measure how your activities / WBS worth.
How? there are several ways, maybe Carmen can elaborate fluently.
Member for
17 years 3 monthsRE: what is weight?
Hi Robert,
Thanks for your reply I got your idea about the weight, so one remain question is, Do I need it in P6 or I can get the same values and information directly from P6 ? and How ?
best regards
Member for
21 years 4 monthsRE: what is weight?
Riad,
waiting for Anoon definitions, you are going to wait a bit.
Why dont you try to read the following post:
Project weightage distribution
Forum category: Project management Issues discussion
Cheers,
Member for
17 years 3 monthsRE: what is weight?
Hi Anoon,
Thanks for Ur reply and In Which way can I use it in P6?
riad
Member for
19 years 1 monthRE: what is weight?
i believe weight is a unit of measure from a measurable matter
needed for P6?, yes