Re: do task constraints constrain subtasks?
- From: John <mjensen@xxxxxxxxxxxx>
- Date: Sun, 26 Mar 2006 19:27:46 -0700
In article <#$Ht$DTUGHA.4300@xxxxxxxxxxxxxxxxxxxx>,
"Rod Gill" <rod AT project-systems DOT co DOT nz> wrote:
Maybe for raw beginners, but linking to summary tasks is perfectly OK. for
example if none of the tasks in one group of tasks can start until all the
tasks in another group have finished, the simple solution is to link the
summary tasks of the two groups. One simple link. Without that option you
need to have every task in the first group linked to every task in the
second group directly or indirectly which is a real mess and doe not
communicate what is happening.
I regularly use and teach this and it causes no problems and displays a more
realistic picture of what is meant to happen.
--
Rod Gill
Project MVP
Visit www.msproject-systems.com for Project Companion Tools and more
Rod,
I guess I take exception to the statement that, "...linking to summary
lines is perfectly OK". Unfortunately very few users are willing to put
themselves into the category of "raw beginner", because even "seasoned"
users can very easily run afoul with summary line links. Sure a user can
"get away" with linking summary lines just like it is fine to use paste
links - as long as the user has exceptional discipline - not a
"built-in" human trait. I think our best consul is to refer users to our
FAQ 48 on summary line links (http://www.mvps.org/project/faqs.htm)
where the pitfalls are highlighted but the rare exception is noted.
John
Project MVP
.
"DavidC" <DavidC@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:CCE1C324-9ED5-4A53-8771-1866A8373A5B@xxxxxxxxxxxxxxxx
Hi Chaps,
My guess it that what you are calling a taskis in fact a summary task, and
the 'subtasks' arethe actual tasks. This being the case, the answer is
yes.
The general rule is NEVER apply dates, durations,predecessors,
successorsor
resources to summary tasks. A summary task is just as the name implies a
summary of all the tasks under that summary. It identifies the overall
duration from the earliest start from all the tasks umder the summary to
the
finish of the task with the latest date of all the tasks under the
summary.
By applying constraint dates to the summary task any task under that
summary
will be constrained as clearly it is telling the project for that sequence
of
tasks under the summary there is an overall constraint.
This is just one of the problems that can be created by treating a summary
task as though it were a task. Another is the equivalent of a circular
reference as found on Excel.
Hope this helps
Regards
DavidC
"Chaps" wrote:
Will a task constraint automatically constrain all of their subtasks?
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