Progress Measurement System

Weight Value – Mixture of M-H and Cost

Published 13 Oct 2020

Reference to our post about Weight value and Earned value, there were comments as regards using the mixture of M-H and cost for Engineering, Procurement and Construction phases. Man-Hour could be used in some project. But, almost in all the EPC Projects, weight value calculation is not a straight forward process and using the mixture of Cost and Man-Hours is an INCORRECT practice.

The Incorrect Mixture

For example, on the attached table, the weight value of Engineering and Construction are based on the Man-Hours, while Procurement packages and the overall EPC phase are based on Cost.

This amalgamation creates a calculation mismatch that prevents a truly integrated Progress Measurement System (PMS).

Some practitioners attempt to use M-H for the entire EPC phase as a workaround. This is equally incorrect because weight values are not just arbitrary percentages—they are systematic calculations.

Mixture of Weight Values Table
Example of Mixed Variable Practice

The weight values are not only having some percentages next to the Project items (deliverables, disciplines, phase, etc.). They are systematic calculations and cannot be an amalgamation of different types of the variables.

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Discussion

LE
Leslie
06 May 2021

I would like to learn about this

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admin
08 May 2021

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