How to read Summary Progress Lines on Gantt Chart

[Mark]

I am using Project 2000. I don't know if the example I added below is
helpful but it is a live example. I am trying to understand the Summary
Progress bar under the black Summary bar on my Gantt chart. The Summary bar
says I am 92% complete Summary Progress as of 1/27/05. Start Date 12/26/04
Duration 40 days. I can see that in my data. But why is the Summary Progress
as of 1/27/05 when todays date is 1/12/04. I need to understand more fully
the Summary Progress function within the black Summary bar. Thanks





SPANDEX R&D (SWEDEN) 36.67d 40d? Mon
12/6/04 Fri 1/28/05 92% 3.33d? NA NA

Documentation & Evaluation 11d 11d? Mon
12/6/04 Mon 12/20/04 100% 0d? NA Mon 12/20/04

Initial Testing
11d 11d? Mon 12/6/04 Mon 12/20/04 100% 0d? NA Mon 12/20/04

Review Corrective Action Plans With Management 0d 2d? Thu 1/27/05 Fri
1/28/05 0% 2d? NA NA

 

[Steve House [MVP]]

Where are you seeing the "as of" date of 1/27? Are you talking about where
the progress lines are drawn on the task bar? The % completion for a
summary is computed as a weighted average of its subtasks. Your first 2
tasks are 11 days each and are marked complete. The third task is 2 days
duration and no work has been done. According to your figures you were to
work a total of 24 days and you've worked 22, thus you are 22/24 or 92%
complete on the "package." Because there is a long lag time between the end
of your testing and the submission of the report, the duration of the
summary task is 40 days (from when the earliest task starts until the latest
task ends) and its duration includes the time when no work is taking place
but work *could* be taking place if you chose. 92% of 40 days is 36.67
days, meaning your progress is the same place it would be if you were to
work continuously for 40 days and had worked for 37. The progress indicator
shows where you *would* be in the summary task if you had done 37 days work
out of the 40 total to be done or about where you would be on 1/24 (1/27
minus the 3 remaining days of work).