What are examples of a cost estimating technique that would be used when producing a summary cost estimate?

Examples of cost estimating techniques used for producing a summary cost estimate include analogous estimating, where costs from similar past projects are used as a reference, and parametric estimating, which utilizes statistical relationships between variables (e.g., cost per square foot) to project costs. Another technique is bottom-up estimating, where individual components of a project are estimated and aggregated to form a total cost. These methods help provide a comprehensive overview of expected expenses for a project.