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Oracle Primavera - PM6

Zero float activity - to be in Longest Path

In the Open Standard
Haresh JayanthMember for 20 years 1 month
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Hi,

I have an activity showing Zero float, but not in longest path, what i have to do to make this activity in the longest path without generating a negative float.

Kindly help out.

regards,


Haresh Jayanth
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4 replies

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  1. 0
    Samer Zawaydeh ·
    #1
    Dear Haresh,

    Back Engineeering your Schedule might not be constructable. If you have followed the Activity/Sequencing/Resources, then your longest path should be correct and you do not need that activity to be on the MOST critical path.

    So my advice would be to check the constructability of the Schedule again.

    With kind regards,

    Samer
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  2. 0
    Rodel Marasigan ·
    #2
    Haresh,
    Not all critical activities lie on Longest Path. Below are some causes of zero float or critical activities:
    1) Activity or activity path is constrained.
    2) You created a multiple critical path.
    3) Must finish date is define.
    4) Activity path lies on open end and define as critical.
    5) Activities lie on critical path but non-driving activities.
    6) Lies on longest path.
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  3. 0
    Zoltan Palffy ·
    #3

    thats not true and activity

    thats not true and activity with zero float or does not have to be the critical path or the longest path. It is the one with the least amount of float which also can be negative.

    do 3 things

    first go to edit users preference and click on time units tab and for the durations format make the decimal places 2.

    second go to Projects and make sure that your project is highlighted click on the setting tab at the bottom under Define critical Activities make sure that the total float less than or equal to in checked and on the right make sure the value is 0.00

    third select tools schedule then options 3/4 way down the page where it says Define Critical activities total float less than or equal to make sure that is checked and the value is 0.00

     

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  4. 0
    Chethan MS ·
    #4

    The activities with zero

    The activities with zero duration maybe or may not be on the longest path, one of the reason could be that the activities with zero float will be having some positive float in the decimal places, if it doesn't work set the crtitical path to 0 and then filter for the critical path. Hope it works. cheers.

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