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Estimating Workshop. Air Wisconsin. April 11, 2011. Agenda. Estimating Methods Introduction Case Study: AQP Proposal Workshop Topics CSS Enhancements Personnel Requisition Process. Why do we estimate?. What are you estimating?. Labor Internal External Hardware Software
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Estimating Workshop Air Wisconsin April 11, 2011
Agenda • Estimating Methods Introduction • Case Study: AQP Proposal • WorkshopTopics • CSS Enhancements • Personnel Requisition Process
What are you estimating? • Labor • Internal • External • Hardware • Software • Capital vs. Expense • One time vs. ongoing • Cash flows
Traditional Methods • Top Down • Bottom Up • PERTT • Delphi
Agile Methods – Relative Estimating • Story Points • Ideal Days
Estimating Techniques • Spending more time does not guarantee better estimates • Often makes estimates worse • Good enough • Planning Poker • Three techniques • Expert Opinion • Analogy • Decomposition
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