Y
yomtov
After I posted my last post I thought a lot about why this tracking is so
important to our project, and as you said it does not make much sense "that
the purchase of 1 beam requiring 1 hour of time, 2 man-hours of work, and
costing $5 has the same weight in terms of total project progress as does the
purchase of another beam requiring 6
weeks of time, 1000 man-hours of work, and the expenditure of $5000". I
realized that this is the key to my difficulties with Project. Because the
fact is that for our company these two beams do have the same weight towards
EV because we get "paid" the same for each beam regardless of the cost that
we put in. Furthermore, we only get "paid" for it when it is 100% complete.
As long as we don't have a beam we have "earned" nothing, we have only spent.
It is not that we are trying to change the laws of mathematics. But Project
is looking at the projects' progress from the point of scheduling, budgeting
and resource allocation, and from that point you are right it makes
absolutely no sense that these two beams should have the same weight.
However this has nothing to do with "earnings" because in the real world you
don't always "earn" according to what you spend. So when I am looking to
track EV I am looking for what I really "earned" and not what Project is
telling me I earned.
important to our project, and as you said it does not make much sense "that
the purchase of 1 beam requiring 1 hour of time, 2 man-hours of work, and
costing $5 has the same weight in terms of total project progress as does the
purchase of another beam requiring 6
weeks of time, 1000 man-hours of work, and the expenditure of $5000". I
realized that this is the key to my difficulties with Project. Because the
fact is that for our company these two beams do have the same weight towards
EV because we get "paid" the same for each beam regardless of the cost that
we put in. Furthermore, we only get "paid" for it when it is 100% complete.
As long as we don't have a beam we have "earned" nothing, we have only spent.
It is not that we are trying to change the laws of mathematics. But Project
is looking at the projects' progress from the point of scheduling, budgeting
and resource allocation, and from that point you are right it makes
absolutely no sense that these two beams should have the same weight.
However this has nothing to do with "earnings" because in the real world you
don't always "earn" according to what you spend. So when I am looking to
track EV I am looking for what I really "earned" and not what Project is
telling me I earned.
Steve House said:Project, and critical path methodology, recognizes the passage of time
compared to the total time that is required, the expenditure of money
compared to the total project budget, and the performance of man-hours of
work compared to the total man-hours required as valid metrics of project
progress. Your method as you've described it isn't looking at any of those.
You might be able to get the subjective "percent physical complete" field to
approximate your requirements but I'm not sure you can get it to roll-up
precisely the way you want it to. I'm afraid you're going to have to go
with old-fashioned paper and pencil to do what you want. No disrespect
intended but your insistance on redefining the meaning of "project progress"
and the calculation of EV so that the purchase of 1 beam requiring 1 hour of
time, 2 man-hours of work, and costing $5 has the same weight in terms of
total project progress as does the purchase of another beam requiring 6
weeks of time, 1000 man-hours of work, and the expenditure of $5000 is
rather like saying "I know what the laws of mathematics say it should be,
but we need Excel to report that 2+2 is 5.7956 when we generate our balance
sheets." IMHO it's no more a merely academic debate on a matter of
management preference or PM style than is the correct answer to 2+2.
--
Steve House [Project MVP]
MS Project Trainer & Consultant
Visit http://project.mvps.org/faqs.htm for the FAQs
yomtov said:Sorry to bring up this old thread, but I was away for a month.
Thank you all for all the replies and help that you gave me. However I
still cannot get this to work. Here is an example that I think will
accurately explain what I am trying to accomplish.
For example, if my project is to purchase 100 identical steel beams. I
create a subtask for each beam. Now each of these "buy 1 beam" tasks will
have subtasks under it with wide variations in work, time etc. Some beams
will take only 2 hrs to purchase and some will take weeks with many
resources.
I would like to track at any point how many beams have been purchased.
That
means, that the only time that the "buy 1 beam" task will "earn its value"
is
when all the subtasks under it will be 100% complete. There is no EV for
something that is 50% or 75% complete since as long as the beam was not
purchased we would not want to include that task in our project's EV. We
can
keep track how much percent is still missing to complete that "buy 1 beam"
task within its subtasks, but they should not count towards the projects
EV.
Additionally, I would like that each of the 100 "buy one beam" tasks
should
be calculated as 1% of the project regardless of the subtasks under it.
This
way I can know at any given moment how many beams have been purchased and
how
many are still needed.
I understand the academic debate above if this is good PM practice,
however,
this is the way we want to track our project. Is there a way in MS
Project
to do this?
All help is greatly appreciated.