Which Practice Area includes the practice of developing high-level estimates to perform the work?

The practice of developing high-level estimates to perform work falls under the Estimating Practice Area. This area focuses specifically on the techniques and processes involved in assessing the resources, time, and costs required to undertake various tasks or projects. High-level estimating is crucial because it helps teams to plan effectively, allocate resources appropriately, and set realistic expectations for stakeholders.

In the context of the CMMI framework, this practice involves using historical data, expert judgment, and estimation techniques to arrive at estimates that guide decision-making throughout the project lifecycle. The focus is on ensuring that estimates are not only reasonable but also based on a solid understanding of the work that needs to be completed, which is essential for successful project management.

This understanding sets the foundation for other practices related to project execution and management, making Estimating a core component of project planning and execution methodologies.