Which statement best describes the role of Estimating (EST)?

Which statement best describes the role of Estimating (EST)?

• A. It guarantees on-time delivery by every project.
• B. It reduces the need for any corrective actions.
• C. It eliminates uncertainty completely.
• D. Estimation provides a basis for making commitments, planning, and reducing uncertainty, which allows for early corrective actions and increases the likelihood of meeting objectives.

Answer: (D)

Estimating is about turning uncertainty into actionable baselines that guide planning and commitments. By estimating size, effort, duration, and cost, you create a credible basis to commit to stakeholders and to shape the project plan. This process also surfaces uncertainties and risks, helping you gauge confidence and plan contingencies. With solid estimates, you can monitor actual progress, spot variances early, and take corrective actions before objectives slip. It’s not about guarantees or eliminating uncertainty completely, nor about avoiding corrective actions; it’s about using estimates to manage uncertainty proactively and improve the odds of meeting objectives.

Estimating is about turning uncertainty into actionable baselines that guide planning and commitments. By estimating size, effort, duration, and cost, you create a credible basis to commit to stakeholders and to shape the project plan. This process also surfaces uncertainties and risks, helping you gauge confidence and plan contingencies. With solid estimates, you can monitor actual progress, spot variances early, and take corrective actions before objectives slip. It’s not about guarantees or eliminating uncertainty completely, nor about avoiding corrective actions; it’s about using estimates to manage uncertainty proactively and improve the odds of meeting objectives.