What is a resource histogram?

A resource histogram is a bar chart that illustrates the demand for resources over a specific period. It helps project managers visualize how resource allocation changes throughout the project timeline, allowing for better planning and management of available resources. This tool is crucial in identifying periods of high demand or potential resource shortages, enabling adjustments to the resource plan if necessary. By visualizing this information, project managers can make informed decisions about resource leveling and allocation, ensuring that the project progresses smoothly without delays caused by resource availability issues.

In contrast to other options, a project milestones chart focuses on key points in a project timeline rather than resource allocation, while a table detailing costs and expenses pertains to financial aspects rather than resource management. A visual representation of team performance, although useful, does not specifically address the resource allocation needs over time, which is the primary focus of a resource histogram.