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What constrainst in p3?

1 reply [Last post]
Sun, 2011-09-18 07:53
Num Lock
User offline. Last seen 11 years 8 weeks ago. Offline
Joined: 15 Oct 2006
Posts: 27
Groups: Pinoy Planning Planet Community

 

Hi, the project finish date is almost 2 years delayed, which constraint shall I use in P3? The data date after I put the constrainst will be the project start date. When I use the mandatory constrainst, the total float will be zero for that activity while the successors has negative floats. When I use the late constrainsts, it has no negative floats. When I use the early constrainst, the applied activity has negative floats. So which one shall I use. I want to show the result of these constrainst to claim Extenstion of time. Can you elaborate the difference between them?

 

1. Early constrainst - start

2. Early constrainst - finish

3. Late constraint - start

4. Late constrainst - finish

5. Start on

6. Expected finish

7. Mandatory start

8. Mandatory finish

9. Float constraint - zero total float

10. Float constriat - zero free float

 

Thanks guys.

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Replies

Mon, 2011-09-19 09:55
#1
Mike Testro
User offline. Last seen 5 weeks 6 days ago. Offline
Joined: 14 Dec 2005
Posts: 4418
Groups: Building Information Modelling, Content Moderators, GPCCAR Editors

Hi Num

Constraints should never be used to demonstrate a delay to the works.

The first thing to do is remove ALL constraints and reschedule so that you have a reasonably realistic critical path.

Best regards

Mike Testro

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