durations for group headers wrong

[Ken Case]

On Oct 23, 2006, at 6:06 AM, uplink team wrote:
> 1) huge task				4h
> 	1) tiny sub task		4h
> 	2) tiny sub task 2		1h
> 	3) tiny sub task 3		0.25h
> 	4) tiny sub task 4		1.5h
>
> why is the time sum of those subtasks just 4h instead of 6,75h ??

It sounds like those sub tasks are all scheduled to run in parallel  
rather than in sequence, so the duration of the huge task is the  
maximum of the durations of the sub tasks.  (Imagine painting rooms  
in a house, and having different painters working on each room:  the  
whole task will take as long as the longest room.)

If those tasks actually depend on each other (i.e., you're painting  
different coats of paint in the same room), you can add dependencies  
between the tasks by dragging dependency lines between them on the  
Gantt chart or by selecting them all and clicking the "Connection"  
button in the toolbar.

If they don't depend on each other but you only have one person  
working on the tasks (i.e., you've only hired one painter), you can  
add a person to your project (in the Resource view) and assign all  
the tasks to that person (by using the "Assignment" button in the  
toolbar or by dragging tasks onto that person's schedule in the  
Resource view).  You can then click on the "Level" button on the  
toolbar to reschedule the tasks so the person doesn't try to work on  
more than one thing at a time.

If the tasks can proceed in parallel and you just wanted to see the  
total effort (i.e., how many hours those painters would bill you for,  
or 6.75h), you can display the total effort (or person-hours) by  
selecting View Options from the View menu (or right-clicking on the  
column headers) and clicking on the Effort checkbox.

I hope this helps!

				Ken