Estimates of size and effort are often used in which specific practice of CMMI for planning activities?

The use of estimates of size and effort is integral to the Planning (PLAN) specific practice within CMMI. This practice focuses on defining the work that needs to be accomplished to achieve project objectives and setting expectations for resource allocation, timelines, and responsibilities. Accurate size and effort estimates enable teams to develop realistic plans that guide their work, allocate resources effectively, and manage stakeholder expectations.

In the context of different practices, Planning incorporates these estimates as a foundational element, ensuring that all involved parties have a clear understanding of the scope of the project. This clarity supports risk management and facilitates informed decision-making throughout the project lifecycle. By focusing on these estimates, project managers can better navigate the complexities of project execution and improve overall performance.

The presence of size and effort estimates in Planning highlights the importance of thorough preparation and effective initial assessments, crucial for the success of any project endeavor.