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Oracle Primavera - PM6

Critical Path activities extension.

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Abbas RajabpourMember for 4 years
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There is a convention in our company that we don't extend the duration of an activity which is on critical path, to capture the activities which have caused the delay in the program in a better way.

 

We have a WBS and under that WBS (which is named Change Management) we add those extension of that.

 

So, basically, if activity A with a duration of 20 days is placed on CPM and is  going to be finished in 25 days,we are going to create another activity named A+ with a duration of 5 days.

 

My questions is if activity A has " activity b", " activity C", and " Activity D" as its successors;

what would be the " successors of activity A, after adding activity A+"

 

And what would be the predecessor and succsors of activity A+.

 

Is it  going to be like this?

 

A: Succeesros ==> Activity B,  C,  D,  A+

 

A+ " Predecessor==> A

A+ : Successor ==> B, C, D?

 


" Is it important if any of activity B, C, or D are driving predecessors for activity A?

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  1. 0
    David Kelly ·
    #1

    Abbas, Normal practice is to

    Abbas, Normal practice is to make a baseline that preserves the original schedule. Extra work can be either: because of a poor estimate, which you only find out about when an activity starts, in which case a remaining duration update will push the activity’s finish out to the appropriate time, The baseline always shows what should have happened. Quite normal to have original duration 20 , started last week, remaining duration 25. Because scope has been missed. You add activities exactly as normal, whose relationships are not dictated in any way by the fact that this is extra work. These activities might be in a ‘growth’ section of the WBS, or even in a separate ‘growth’ project linked to the base scope project. Once again the baseline tells us what should have happened
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  2. 0
    Alex Lyaschenko ·
    #2

    Abbas,This will work only if

    Abbas,

    This will work only if all dependencies are 'Finish-to-Start' without lags/leads. 

     

    Regards,

    Alex Lyaschenko

    https://www.linkedin.com/in/alex-lyaschenko-6b630314/

    https://saluteenterprises.com.au/blog/

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  3. 0
    Alex Lyaschenko ·
    #3

    Abbas,This will work only if

    Abbas,

    This will work only if all dependencies are 'Finish-to-Start' without lags/leads. 

     

    Regards,

    Alex Lyaschenko

    https://www.linkedin.com/in/alex-lyaschenko-6b630314/

    https://saluteenterprises.com.au/blog/

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  4. 0
    Zoltan Palffy ·
    #4

    this all depends on the real

    this all depends on the real world logic lets take an example of a concrete footing installation

    A=excavation

    B= form

    C= rebar 

    D= pour

    now there is a change which is is A+

    is it a change to the excavation ?

    is it a change the forming ? 

    is it a change to the rebar ?

    is it a change to the pouring ?

    this will determine where A+ should be inserted and will determine the predcessor and successor

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