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The ninety-ninety rule of project scheduling * - Songs of innocence and of experience [entries|archive|friends|userinfo]
Douglas Spencer

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The ninety-ninety rule of project scheduling * [Jun. 13th, 2009|08:37 pm]
Douglas Spencer
The server upgrade at Client S has proceeded as follows:

  • Installing the new server -- a couple of hours.
  • Updating the new server -- a couple of hours.
  • Configuring the new server -- a couple of hours.
  • Moving almost all of the desktops out of the old domain and into the new one, and reconfiguring appropriately -- a couple of hours.
  • Moving the last two desktops out of the old domain and into the new one, and reconfiguring appropriately -- Two days so far, and counting. We pick up on Monday morning where we left off.


  • *The first ninety percent of a project takes the first ninety percent of the time; the last ten percent of a project takes the remaining ninety percent of the time.
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    Comments:
    [User Picture]From: maryread
    2009-06-13 07:59 pm (UTC)
    This certainly explains a lot of what is going on here. For really rather wide values of "here".
    (Reply) (Thread)
    [User Picture]From: alexmc
    2009-06-13 08:38 pm (UTC)
    It has always been 80/20.

    You do the first 80% of the work in 20% of the time, and then the last 20% of the work in 80% of the time.

    But I guess the principle is the same.




    This may be why I leave most projects unfinished...
    (Reply) (Thread)
    [User Picture]From: alexmc
    2009-06-13 08:39 pm (UTC)
    Sorry, that meant to say "Where I work it has always been 80/20."
    (Reply) (Parent) (Thread)