Incorrect Durations for differening resource schedules?

[estysalinas]

I have the following situation.

Resources work hours allow for:
R1- 45 hour/week
R2- 45 hour/week
R3- 40 hour/week
*45 is the base cal, 40 is a work week override.

Task 1 is assigned to R1 for 90 hours, Task 2 is assigned to R2 for 90
hours, Task 3 is assigned to R3 for 90 hours.

All the tasks show a duration of 10 days. The start and end dates show 10
days for Task 1 and 2, however for task 3, it shows an end date of +1 day of
the other tasks resources. This makes sense because he is on a 40 hour
workweek.

Why does project keep the duration of Taks 3 @ 10 days when the work time is
really 11 days, and start and finish days show 11 days. The task is actually
taking 11 days to complete and not 10 days. Am i missing something? Thanks!

 

[JulieS]

Hello estysalinas,

There is nothing "incorrect" about the durations in the scenario
you've outlined.

The work on each task is 90 hours. The duration of 10 days is based
upon the definition *you* set in Tools > Options, Calendar tab
Number of hours per day, Number of hours per week. I assume you've
set that to 9 hours per day and 45 hours per week. The Duration of
each task is 10 days * 9 hours per day. Because R3 only works 8
hours per day, the finish date of the task is modified to show the
longer time it takes R3 to accomplish 90 hours of work based upon 8
hours per day.

Please see FAQ #5 at http://project.mvps.org/faqs.htm for some
additional information.

I hope this helps. Let us know how you get along.

Julie
Project MVP

Visit http://project.mvps.org/ for the FAQs and additional
information about Microsoft Project