Portfolios tend to have over or under allocations if the portfolio management is of low maturity. Which tool will help you analyze the resources over and under allocations?

A Communication Management Plan defines stakeholder communication strategies and channels; it contains no resource allocation data and cannot be used for capacity analysis.

A resource histogram is a bar chart that shows resource demand across time periods, making it straightforward to identify periods where resources are over-allocated (bars exceed available capacity) or under-allocated (bars fall below optimal utilization). This visual representation is the primary tool for capacity analysis and resource optimization in portfolio management.

A Performance Management Plan establishes how portfolio performance will be measured and reported; it does not provide a view of resource loading or allocation gaps.

A Resource Pool is an inventory of available resources; while it shows what is available, it does not visualize allocation patterns or highlight over/under-utilization across time.