Schedule Updating and Project Control - Construction Project Scheduling and Control - page 195

3. Man-hours % Complete:

Baseline % Complete = 4 ∕ 13 = 30 . 8 %

Actual % Complete = 6 ∕ 15 = 40 %

4. Duration % Complete:

Baseline % Complete = 2 ∕ 5 = 40 %

Actual % Complete = 3 ∕ 6 = 50 %

5. Work-hour Unit % Complete:

Baseline % Complete = 4 ∕ 7 = 57 %

Actual % Complete = 6 ∕ 9 = 66 . 7 %

6. Supervisor's opinion = 35%

This example dramatizes the concept of percent complete for a reason:
a percent complete is not just a percent complete! Make sure that you know
exactly what you are measuring.

Percent Complete for a Work Package A work package (or assembly) is some-
where between an activity and a project. It is made up of a collection of related items.
A continuous footing work package may include excavation, formwork, reinforce-
ment, and concrete mix placement for that footing. A wall work package may include
framing, electrical wiring, insulation, drywall, and painting. The percent complete for
a work package can be obtained by selecting an appropriate method among those
explained earlier, both for an activity or the project.

Progress Payments and Percent Complete

Payment requests depend completely on the percent complete for each activity and
the unit prices submitted and approved in the schedule of values. 9 The five standard
steps for progress payment requests are as follows:

1. The project contract usually specifies the frequency of progress payments, often
monthly, and the closeout date for each period. This closeout date—say, the
25th of the month—is set for the general contractor to bill the owner. The

9 In the British system, schedule of values is referred to as bill of quantities (BOQ) .