Cost Estimating Points
Conceptual Estimate
This is an early-stage estimate made during the project initiation or conceptualization phase. It is typically based on limited information, such as project scope and high-level requirements. The purpose is to provide a rough order of magnitude (ROM) estimate to support project feasibility studies and initial budgeting decisions.
Preliminary Estimate
This estimate is developed during the project planning phase when more detailed information becomes available. It involves a deeper analysis of project requirements, scope, and key deliverables. The preliminary estimate helps in refining the cost projections and identifying major cost drivers and potential risks.
Detailed Estimate
As the project progresses and more specific data and design information become available, a detailed estimate is prepared. This estimate is based on a comprehensive analysis of all project components, such as labor, materials, equipment, and overhead costs. It is usually the most accurate estimate and is used for budgeting, contract negotiation, and procurement activities.
Control Estimate
This estimate is prepared during the project execution phase to track and control project costs. It involves comparing the actual costs incurred against the estimated costs to assess project performance and identify any cost overruns or variances. The control estimate helps in monitoring project financials and making adjustments to stay within budget.
Bid Estimate
In certain situations, cost estimates are prepared for the purpose of bidding on projects or contracts. Bid estimates need to be competitive and reflect the anticipated costs of delivering the required goods or services. These estimates require a thorough understanding of project specifications, market conditions, and the organization's cost structure.