11.3 Cost estimation

To estimate how much software-engineering time will be required to do some work.

• Elapsed time

  • The difference in time from the start date to the end date of a task or project.
• Development effort

  • The amount of labour used in person-months or person-days.
  • To convert an estimate of development effort to an amount of money:

    You multiply it by the weighted average cost (burdened cost) of employing a software engineer for a month (or a day).
    

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