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A "Late Finish" Calculated from Free Float?

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Greg Paulson
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Hello,

Does anyone know if there is a form of a "Late Finish" that would be calculated as the latest date an activity can finish without affecting the start date of any of its successor activities? (i.e. Latest Finish where Free Float = 0)

I have fabrication and long lead activities that I do not want to drive any of my construction activities, and would like to give "drop dead" dates to our fabricators.

As a general practice, I filter my fabrication activities for Free Float = 0d to generate a list of fabrication items driving my construction dates.  Then I use this list to give a warning that fabrication is slipping.

I would prefer to generate a list of all fabrication activities that shows the finish date that would use up all of that activity's free float.

This question was touched upon in a 2007 post, but I don't see an answer that works for me.  http://planningplanet.com/forums/microsoft-project/415942/late-start-free-float

Any other suggestions are appreciated.

Thanks!

 

Greg

Replies

Rafael Davila
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Joined: 1 Mar 2004
Posts: 4476

More interesting can be the calculation of Drop Dead Dates for partial deliveries of Consumable Resources such as Bricks.

As you can see in this model after consumable resources [Bricks] are leveled deliveries free float is consumed but not all float.

Rafael Davila
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Joined: 1 Mar 2004
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No way all conceivable parameters will be provided within your software but the software shall give you the tools [functions] to calculate dates based on your calendars.

Calculate the Free Float Finish using User Defined Field and [Global Change] simple formula available in your software.  Just take a look at the formula, cannot be any easier.

Free_Float_Finish

To apply the constraint as late as possible to that activity is an option to consider if your software does not provide the functions required to make the calculations.

Good Luck

Zoltan Palffy
User offline. Last seen 2 days 12 hours ago. Offline
Joined: 13 Jul 2009
Posts: 1849

yes apply the constraint as late as possible to that activity