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Estimating Workshop

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Presentation Transcript

  1. Estimating Workshop Air Wisconsin April 11, 2011

  2. Agenda • Estimating Methods Introduction • Case Study: AQP Proposal • WorkshopTopics • CSS Enhancements • Personnel Requisition Process

  3. Why do we estimate?

  4. What are you estimating? • Labor • Internal • External • Hardware • Software • Capital vs. Expense • One time vs. ongoing • Cash flows

  5. Traditional Methods • Top Down • Bottom Up • PERTT • Delphi

  6. Agile Methods – Relative Estimating • Story Points • Ideal Days

  7. Estimating Techniques • Spending more time does not guarantee better estimates • Often makes estimates worse • Good enough • Planning Poker • Three techniques • Expert Opinion • Analogy • Decomposition

  8. Estimating Techniques • Missing items cause more issues than bad estimates • Manage expectations • Accuracy increases as project progresses • Estimate in ranges • Round to higher numbers • Contingency • Reserves