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Oracle Primavera - PM6

Predecessor type

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Jason LIMember for 18 years 9 months
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Hi planner,
I have a stupid question, an activity has a predecessor, relationship is FS, if the predecessor activity type is WBS summary or Level of effort. Then the activity will not drived by the predecessor. Can somebody kindly give me an explain. Thanks!
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4 replies

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  1. 0
    Patricia Le Clainche ·
    #1
    Hello,

    Level of Effort tasks should only be linked with predecessors, with relationships SS and FF.

    I never try with WBS Summary, that I use for specific things.

    Good luck.
    Patricia
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  2. 0
    Mike Testro ·
    #2
    Hi GENSHENG

    You are right - only use FS links from level 4 tasks.

    Build up to levels 3 2 1 by use of summaries.

    This is called bottom up planning and it works in detail.

    Best regards

    Mike Testro
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  3. 0
    Dieter Wambach ·
    #3
    GENSHENG LI ni hao

    P6 ignores relationships for WBS-Summaries becaus they are spanned over a WBS - which might be the complete project.

    Levels of effort have no own duration. they depend on their predecessors and their successors. They don’t drive a successor.

    Regards

    Dieter
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  4. 0
    Jason LI ·
    #4
    I got it. Many thanks to you all.^-^
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