Resource Breakdown Structure

Correct Answer: Organizing project resources into a hierarchical structure

The primary purpose of the Resource Breakdown Structure (RBS) is to organize project resources into a hierarchical structure. An RBS is a tool that categorizes resources on the basis of type and name, which helps in resource planning, allocation, and control. This is the best answer because the purpose of an RBS is centered on the organization and breakdown of resources. While RBS can contribute to estimating budget and costs for the project, creating a detailed project schedule, and identifying project risks and their likelihood, these are not its primary purpose. Rather, these tasks can be directly or indirectly influenced by the RBS, but they principally involve other processes, tools, and techniques. For instance, costs are often estimated with techniques like parametric and analog estimating; schedules are typically established using tools like Gantt charts and network diagrams; risk identification requires risk management processes like risk analysis and risk response planning.

Correct Answer: Ineffective communication or collaboration within the project team

The correct answer is 'Ineffective communication or collaboration within the project team'. This is because the resource breakdown structure (RBS) of a project management defines how resources are allocated. A well-defined RBS should mean resources are managed effectively. Yet, if the project still faces issues, it's likely due to collaboration or communication issues within the team. The other answers are wrong because a lack of a work breakdown structure (WBS) isn't the case here as we're dealing with an RBS, incorrect project estimates would be considered a planning issue rather than a resource management issue, and the wrong project management methodology would imply that there are structural issues with the project - not just resource management issues.

Correct Answer: Comparing the RBS with the work breakdown structure (WBS)

The best way to identify missing resources in your project's resource breakdown structure (RBS) is by comparing it with the work breakdown structure (WBS). The WBS provides a detailed breakdown of all the work and tasks required to complete the project, while the RBS organizes the resources that will be used in the project. By comparing them, you can identify missing resources in the RBS, as they should align with the tasks identified in the WBS. Reviewing the project schedule, conducting a risk assessment or implementing a change management process won't necessarily help you identify missing resources directly as they are not designed to compare tasks and resources needed clearly as when comparing the RBS to the WBS.