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The Project Management Tool Kit: 100 Tips and Techniques for Getting the Job Done Right by Tom Kendrick

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Determine Duration

Duration estimates are a central component of project plan development. For each listed task in your project activity definition, use responsibility analysis and other planning data to develop timing estimates, in workdays. Useful estimating ideas include:

  • History (lessons learned, databases of project diagnostic metrics)

  • Activity owner analysis and personal experience

  • Analogs (previous work of a similar type)

  • Experts (consultants, peers, managers, vendor proposals)

  • Published data (WWW, papers, articles, professional magazines)

  • Parametric or size-based formulas (“rules of thumb;” complexity analysis; component or module counts; function points and other code assessments; measurements of volume, area, length, or other parameters) ...

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