What is a primary responsibility of project managers in terms of project activity?

A primary responsibility of project managers is to track activity development throughout the lifecycle of a project. This involves monitoring the progress of various tasks and ensuring that they align with the project's timelines, goals, and deliverables. By effectively tracking development activity, project managers can identify any potential delays or issues early on and implement corrective actions to keep the project on track.

Tracking activity also enables project managers to communicate updates accurately to stakeholders, which is essential for maintaining transparency and trust within the project. This aspect of project management involves not only overseeing the work being done but also facilitating collaboration among team members to ensure everyone is moving towards the same objectives.

While minimizing project costs may also be an important goal, it is not the primary responsibility tied to activity tracking. Increasing team size and delegating all tasks are related to resource management but lack the direct focus on monitoring progress and quality that tracking activity encompasses. Therefore, the emphasis on tracking activity development signifies a critical function of project management that helps ensure projects succeed within their constraints.