Relative sizing (e.g., Fibonacci) based on complexity rather than hours. Active Agile Teams
Use the Estimate Accuracy Ratio (EAR) (Actual Hours / Estimated Hours). A healthy target is 0.9–1.1 . 3. Leading Estimation & Management Tools Software Estimation Best Practices, Tools & Tec...
Budgeting 3–5% of infra for trace storage (e.g., Langfuse). Model Drift: Recalibration time for evolving AI APIs. Relative sizing (e