I'm simply saying the term "milestone" should refer to the event that takes
place - ie, all SA's and AC's are complete - and not the date on which it is
supposed to take place. To say "The 1st of September is a crucial milestone
in out project" without saying what it is that must take place on or before
that date doesn't make much sense. On the other hand, "we must have the
signed contracts in hand prior to the 1st of September in order to proceed
on schedule" makes perfect sense - the milestone event is "all contracts
signed" and the deadline date by which it must occur is the 1st of
September. If everyone gets a jump on it and gets right back to us, that
milestone might occur on the 20th of August, well before deadline.
Conversely, if someone drags their feet, that milestone event might not
occur until the 10th of September, 10 days too late. Regardless, the
milestone proper is the project "gate," signifigant event, or
change-of-state of having the contracts signed and ready to go. The
milestone is the important transition point between the state of "unable to
proceed because the contracts aren't signed" and the state of "able to
proceed because the required paperwork is in-hand."
--
Steve House [Project MVP]
MS Project Trainer & Consultant
Visit
http://www.mvps.org/project/faqs.htm for the FAQs
I'm with davegb. In our world, we use IMP/IMS development defining
Program
Events (PE-Milestones), Significant Activities (SA) must be completed
prior
to a PE, and subodinatae to SA's are Accomplishment Criteria (AC) for
each
SA. A PE occurrs when all of it's subodinate SA's and AC's are 100%
complete. The PEs are generally contractual Tier 1 Milestones that have
dates that are "Shall be on this date or you don't get paid" type contract
language. That also means they cannot occur early (or late) without
contract
change authorization.
Please see Air Force publication AFMC Pamphlet 63-5 for more information.
Yes, I agree that Steve has a point supported by my position... I can't
have
a PE until all it's subordinate SA/AC are completed. In that sense, the PE
(milestone) happens whenever it happens. The only issue with that is the
contract which would have performance penalties for not meeting the date.
As
such, the dates become "Must Finish On" or "Must Start On." Since the
milestone is a 0 duration event, either constraint produces the same
result.
Sometimes the customer is kind and allows "Finish No Later Than.."
It's all a philosophy thing, independent of our favorite tool MS Project.
:
Steve House wrote:
Something to think about ... a milestone is not a target or a date. A
milestone is an event, a marker that something worth tracking has
occurred
in the project. It occurs whenever it occurs. Of course you may,
probably
do, have specific deadlines by which a milestone must happen, but
that's
something else entirely. The milestone is the actual event being
monitored - "proposal accepted," etc - and it might end up occurring
on,
before, or after the desired target date. Therefore saying "I have a
milestone in 2008" is really not a valid statement. I know it sounds
like
just being picky about terminology, but phrasing it as "I have an
important
milestone which must occur by XXX, 2008" can really help keep focussed
on
how to build a schedule that meets the requirement. Otherwise it's far
too
easy to succumb to the temptation to fix the date of the milestone to
its
target with a constraint.
--
Steve House [Project MVP]
MS Project Trainer & Consultant
Visit
http://www.mvps.org/project/faqs.htm for the FAQs
I'm going to have to respectfully disagree with Steve here. We have
different concepts of milestones. I believe they can be a target and
certainly can have a date on which they must occur. If you're launching
the shuttle, there are launch windows of time in which the launch must
occur or be significantly delayed. The last day in the launch window
might be a milestone by which the launch has or has not occured,
thereby affecting what happens thereafter.
In event planning, there are usually several dates on which certain
things must occur. If the keynote speaker is scheduled to step to the
rostrum on Aug 2 at 8 am, that pretty much has to happen or you have a
fiasco. You can't call everyone planning to attend on the night before
and tell them to change their travel plans because you and your team
didn't get it right.
I imagine others have different interpretations of this term. But it's
not cast in concrete by any means.
I was wondering if it's possible to see a Critical Path for certain
tasks.
Say my project end in 2010. But I have a very important milestone in
2008.
The critical path to that very important milestone is different that
the
critical path for the entire project. Is there a way I can toggle
back
and
forth between the different views. I want to be able to see the
critical
path for my milestone in 2008. Is this possible?
Thanks in advance!