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Soft Constraints in MP 2007 and 2010 RRS feed

  • Question

  • Does anyone know how to turn off the default for soft constraints being automatically placed in MP2007 or MP2010?

    C.O.S.T., LLC

    Saturday, August 25, 2012 5:38 AM

Answers

  • Sorry, but what is a "soft constraint"?

    --rms www.rmschneider.com

    • Marked as answer by Scheduler OK Saturday, August 25, 2012 8:11 PM
    Saturday, August 25, 2012 6:07 AM
  • Hi,

    Didn't we discuss this in an other forum? Soft constraints are generated by Project to place the tasks where you want them to if that is different from the default As soon as possible, taking into account task dependencies. Without them, all tasks would be scheduled asap. So when the user wants a task not to start on this ASAP date, the only possibility is using constraints.

    They are mostly generated by two mechanisms: when you write directly into start ro finish field (and the alternative to the constraint is that Project simply ignores your input!!) - and Update Project. Of course you can stop using Update Project and let unfinished work be happily planned in the past: that is not my idea of a usable project plan.

    Constraints are not devils out of hell, they are an integral part of Project's scheduling logic - abolishing them means all unstarted tasks will be scheuled immediately after the end of the predecessor.

    Greetings,

    Saturday, August 25, 2012 8:26 AM
    Moderator
  • Does anyone know how to turn off the default for soft constraints being automatically placed in MP2007 or MP2010?

    C.O.S.T., LLC

    No, there is no way to turn it off. 

    • Proposed as answer by Ismet Kocaman Saturday, August 25, 2012 7:56 PM
    • Marked as answer by Scheduler OK Saturday, August 25, 2012 8:10 PM
    Saturday, August 25, 2012 11:01 AM
  • Scheduler OK --
     
    When you manually enter a Start date for a task, all versions of Microsoft Project sets a Start No Earlier Than (SNET) constraint on the task automatically.  When you manually enter a Finish date for a task, the software sets a Finish No Earlier Than (FNET) constraint automatically.  I believe this is what you mean by software constraints.  And if so, there is no way to turn off this default behavior.  If you do not like this behavior, then DO NOT manually type Start dates and Finish dates for tasks.  Instead, set the logic in your project task list by setting dependencies.  Hope this helps.
     

    Dale A. Howard [MVP]
    VP of Educational Services
    msProjectExperts
    http://www.msprojectexperts.com
    http://www.projectserverexperts.com
    "We write the books on Project Server"

    Saturday, August 25, 2012 5:13 PM
    Moderator

All replies

  • Sorry, but what is a "soft constraint"?

    --rms www.rmschneider.com

    • Marked as answer by Scheduler OK Saturday, August 25, 2012 8:11 PM
    Saturday, August 25, 2012 6:07 AM
  • Hi,

    Didn't we discuss this in an other forum? Soft constraints are generated by Project to place the tasks where you want them to if that is different from the default As soon as possible, taking into account task dependencies. Without them, all tasks would be scheduled asap. So when the user wants a task not to start on this ASAP date, the only possibility is using constraints.

    They are mostly generated by two mechanisms: when you write directly into start ro finish field (and the alternative to the constraint is that Project simply ignores your input!!) - and Update Project. Of course you can stop using Update Project and let unfinished work be happily planned in the past: that is not my idea of a usable project plan.

    Constraints are not devils out of hell, they are an integral part of Project's scheduling logic - abolishing them means all unstarted tasks will be scheuled immediately after the end of the predecessor.

    Greetings,

    Saturday, August 25, 2012 8:26 AM
    Moderator
  • Does anyone know how to turn off the default for soft constraints being automatically placed in MP2007 or MP2010?

    C.O.S.T., LLC

    No, there is no way to turn it off. 

    • Proposed as answer by Ismet Kocaman Saturday, August 25, 2012 7:56 PM
    • Marked as answer by Scheduler OK Saturday, August 25, 2012 8:10 PM
    Saturday, August 25, 2012 11:01 AM
  • Scheduler OK --
     
    When you manually enter a Start date for a task, all versions of Microsoft Project sets a Start No Earlier Than (SNET) constraint on the task automatically.  When you manually enter a Finish date for a task, the software sets a Finish No Earlier Than (FNET) constraint automatically.  I believe this is what you mean by software constraints.  And if so, there is no way to turn off this default behavior.  If you do not like this behavior, then DO NOT manually type Start dates and Finish dates for tasks.  Instead, set the logic in your project task list by setting dependencies.  Hope this helps.
     

    Dale A. Howard [MVP]
    VP of Educational Services
    msProjectExperts
    http://www.msprojectexperts.com
    http://www.projectserverexperts.com
    "We write the books on Project Server"

    Saturday, August 25, 2012 5:13 PM
    Moderator