A question on dates

[JNB]

Hi all,

A novice question...

What are the definitions of the following dates with respect to the
phases of a project ? Planned date, Scheduled date, Calculated date, Actual
date.

I've seen the following expression in a forum related to Project 2007 for
the definition of FNET constraint:

 

[Jan De Messemaeker]

Hi,

Some routines, namely Resource Leveling, will calculate and create a delay;
that is what is mentioned in the formula.

--
Jan De Messemaeker
Microsoft Project Most Valuable Professional
+32 495 300 620
For availability check:
http://users.online.be/prom-ade/Calendar.pdf

 

[Jan De Messemaeker]

Hi,

Filter definitions only refer to fields in te task itself or to Project
Fields.
You can use a VBA procedure to calculate the try-ue or false of your
conditions, enter this value for each task into a flag firld, and filter on
the flag field.
HTH

--
Jan De Messemaeker
Microsoft Project Most Valuable Professional
+32 495 300 620
For availability check:
http://users.online.be/prom-ade/Calendar.pdf

 

[JNB]

Thank you for your reply.

My question is related to terminology used.

"(Scheduled)ES=(Calculated)ES + Delay" is not a formula. It is used to
demonstrate
how "Finish No Earlier Than" constraint works. Somebody wrote it anyway.
My confusion comes from the term "Scheduled Early Start". I believe there is
no "scheduled early start" concept, it is always calculated by Microsoft
Project. I need some clarification on this matter, that's the reason why I
posted the previous message.

Thanks anyway. I really appreciate it.

Best

 

[Jack Dahlgren]

JNB,

My reading of this "equation" is that:

"Calculated Early Start" is the date which the typical critical path method
algorithm provides. That is it is the earliest that the task can start given
a set of dependencies.

"Delay" is a factor which is generated in the leveling process. It is a time
factor which is used to stagger the work or move assignments into the future
to avoid resource overallocation.

"Scheduled Early Start" is the date that the task is actually scheduled to
start after delay is added to calculated early finish. It is of course
calculated too. So apparently the author used "Scheduled" to differentiate
it.

Hope that clarifies things.

-Jack Dahlgren

 

[JNB]

Thank you Jack for your reply, I really appreciate it.

That's an expression from the web site :
http://ossmall.info/2008/01/17/definition-of-microsoft-project-constraints/
I believe the definitions are not correct.

Let's skip all these expressions and let me rephrase my question: how does
the
Project (or CPM on the background) calculate Early Start Date if there is a
"Finish
No Earlier Than" constraint defined for a task on the network ?

Thanks in advance for any feedback.