Weight Factor

ِDear Testro

Hi,

you are right, but my method is a simple sample for buttom up approach. the best solution depend on Create S.W.U for Project.

B/R

Cost is not a reliable method of reporting progress.

Your split of 70 / 30 is too broad an average when in some task the split is 20 / 80 and others 90 / 10.

If you are going to apply this method then you must allocate the correct split to each task.

Also there is a 3rd split of OH&P which is not progress related at all.

Dear moutaz

Hi,

the best way for create weight factors as following items:

1- Cost ( 70 % share)

2- Time ( 30 % share)

Total weight= 70% w.cost+ 30% w.Time

Also you need determain the S.W.U ( Specific Work Units) for in the WBS units.

Best Regards

Rashidi

Hi Moutaz

Weightage only becomes a problem when a planned task s a combination of trades and/or location ie:

FRC Suspended slabs : 20-10-17 > 15-12-17 > 40d

When this task is spread over - say - 5 slabs then you have both a time and cost weithage problem.

This is because planners are lazy and lack pride in their profession.

It is just as easy to plan the work in detail ie:

Level 1

Slab Form > Rebar > Edge Forms > Pour Concrete

Level 2

                Slab Form > Rebar > Edge Forms > Pour Concrete

Etc

Then you just report % complete in either time or volume on each task.

Best regards

Mike T.

Hi Moutaz,

To Calulate weightage you can do it by either

• By Only Cost
• By Time and Cost

If the Project is only Construction then Manhours / Activity would be good.

If the Project is Engineering, Procurement and Construction then it would be better to use Manhours / Deliverable, Cost / Item and Manhours / Activity to measure each WBS.

In an Overall summary ou can use Cost or the weightage given by Client.

Regards

Jithin