Douglas Spencer (dougs) wrote,
Douglas Spencer
dougs

The ninety-ninety rule of project scheduling *

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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